Knowledge (XXG)

Mancos Shale

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and mudstones of the Dakota and in its upper part grades into and intertongues with the Mesaverde Group. The shale tongues typically have sharp basal contacts and gradational upper contacts. Whereas in the plains east of the Rocky Mountains certain mappable marine shales are identified as formations
902: 3690: 2835: 2302: 1806: 1107:...that all divisions of the Colorado group (Mancos shale) as described in southern Colorado, except the Fort Hays limestone and the Apishapa shale, can be recognized in northern New Mexico. 1764: 1005: 1293:"Stratigraphic and time-stratigraphic cross sections of Phanerozoic rocks along line A-A', Uinta and Piceance basin area-Eagle basin, Colorado, to eastern Basin-and-Range area, Utah" 1000: 1015: 995: 3676: 3827: 2821: 1010: 2288: 1792: 3822: 3872: 1757: 1323:"Depositional controls on the late Campanian Sego Sandstone and implications for associated coal-forming environments in the Uinta and Piceance basins" 494:
region. As such, various units of the Colorado Group are recognized within the Mancos in those areas where their distinct facies can be recognized.
319: 1379:"Surface and subsurface stratigraphy of the Burro Canyon Formation, Dakota Sandstone, and intertongued Mancos Shale of the Chama Basin, New Mexico" 3892: 1750: 347: 3887: 1413:"Stratigraphy of the Cretaceous rocks and the Tertiary Ojo Alamo Sandstone, Navajo and Hopi Indian Reservations, Arizona, New Mexico, and Utah" 3683: 1202: 1148: 2828: 3877: 2295: 1799: 1260:"Cretaceous and Tertiary formations of the Book Cliffs, Carbon, Emery, and Grand Counties, Utah, and Garfield and Mesa Counties, Colorado" 3882: 909: 1233:"Burial and thermal history of the Paradox Basin, Utah and Colorado, and petroleum potential of the Middle Pennsylvanian Paradox Basin" 3832: 912:
Tununk Member of the Mancos Shale below the capping Ferron Sandstone Member. West side of the San Rafael Swell, Emery County, Utah.
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area, defining it as all marine shale between the Dakota and the Mesaverde. It was subsequently traced into Utah and New Mexico.
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During their work in New Mexico in 1924, J.B. Reeside, Jr., and F.H. Knowlton found that the Mancos Shale could be divided into
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with other formations. The subunits and intertonguing formations (in italics) in each basin, in stratigraphic order, are:
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further east. By 1944, Rankin had concluded that most of the formations of the Colorado Group could be identified as
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The Mancos Shale was first described by Cross and Purington in 1899 and was named for exposures near the town of
2082: 411: 3852: 3847: 3837: 3378: 3329: 3277: 3201: 2258: 1977: 1378: 534: 521: 389: 283: 1992: 2974: 2568: 1133:"Lithostratigraphic and biostratigraphic framework for the Mancos Shale (Late Cenomanian to Middle Turonian)" 3857: 3299: 3181: 3133: 3079: 2505: 2485: 2159: 2119: 2029: 2017: 821: 427: 3426: 2979: 2964: 2629: 2445: 2365: 2191: 3406: 3251: 3186: 3049: 2527: 2522: 2236: 1987: 3304: 3014: 2984: 2425: 2139: 1982: 1936: 1900: 3793: 3523: 3221: 3206: 3176: 3109: 2495: 2370: 2226: 2211: 2154: 2097: 2007: 1972: 1037: 987: 918: 393: 3777: 3528: 3483: 3456: 3421: 3411: 3319: 3104: 3069: 3024: 2994: 2410: 2092: 1352:"Geology and oil possibilites of the eastern side of the San Juan basin, Rio Arriba County, New Mexico" 3647: 3642: 3620: 3584: 3294: 3289: 3211: 3191: 3171: 3084: 3044: 2999: 2989: 2907: 2902: 2775: 2770: 1377:
Owen, Donald E.; Forgas, Angelique M.; Miller, Shawn A.; Stelly, Ryan J.; Owen, Donald E. Jr. (2005).
502: 3739: 3314: 3216: 3099: 3054: 3039: 2440: 2415: 2405: 2216: 2206: 2102: 2012: 1997: 1512: 953: 704: 415: 3751: 2606: 2601: 2470: 857: 3324: 3261: 3089: 2897: 2765: 2748: 2704: 2395: 2390: 2221: 973: 930: 621: 460: 160: 3149: 3004: 2937: 2788: 2722: 2611: 2563: 2465: 2420: 2241: 2231: 2149: 2144: 2129: 2065: 2002: 1959: 1941: 1905: 1773: 1173:"Geologic map of the Tierra Amarilla quadrangle, Rio Arriba County, New Mexico, with description" 1118: 949: 866: 645: 613: 542: 291: 140: 1733: 1068: 3625: 3603: 3589: 3567: 3560: 3510: 3478: 3470: 3231: 3196: 3064: 3009: 2644: 2634: 2596: 2573: 2500: 2455: 2435: 2375: 2196: 2169: 2124: 2087: 1860: 1567:
Lee, Willis Thomson (1912). "Coal fields of Grand Mesa and the West Elk Mountains, Colorado".
1144: 476: 1442:"Stratigraphic terminology of the Dakota Sandstone and Mancos Shale, west-central New Mexico" 3761: 3493: 3449: 3401: 3334: 3246: 3226: 3154: 3034: 3019: 2959: 2942: 2677: 2639: 2591: 2558: 2514: 2490: 2355: 2348: 2201: 2186: 1729: 1646: 1613: 1584: 1576: 1547: 1540:"The Frontier Formation and associated rocks of northeastern Utah and northwestern Colorado" 1520: 1449: 1420: 1330: 1271: 1240: 1064: 941: 922: 811: 687: 554: 538: 400: 306: 287: 1539: 1232: 956:
by C.E. Jamison in 1911, and is sometimes given group rank in New Mexico and Utah as well.
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New Mexico Bureau of Geology and Mineral Resources Open-file Digital Geologic Map
3714: 3705: 3502: 3270: 2850: 2460: 2317: 1852: 1821: 1040:; Purington, C. W. (1899). "Description of the Telluride quadrangle, Colorado". 882: 874: 592: 511: 507: 60: 3612: 3440: 2920: 2339: 1843: 1089:"Stratigraphy of the Colorado Group, Upper Cretaceous, in Northern New Mexico" 963: 934: 431: 247: 105: 70: 219: 206: 3551: 3370: 2881: 2861: 2741: 2178: 2049: 2038: 1928: 471: 446: 439: 110: 54: 46: 17: 1696:
Zakis, William (1952). "Table Mesa Oil Field San Juan County, New Mexico".
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Walton, P.T. (1944). "Geology of the Cretaceous of the Uinta basin, Utah".
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Weimar, R.J. (1960). "Upper Cretaceous Stratigraphy, Rocky Mountain Area".
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The Mancos is a diverse unit, with dozens of named subunits in different
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that accumulated in offshore and marine environments of the Cretaceous
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O'Sullivan, R.B.; Repenning, C.A.; Beaumont, E.C.; Page, H.G. (1972).
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Roberto, Sarmiento (1957). "Microfossil Zonation of Mancos Group".
1668:"Geology and Mineral Resources of a Portion of Fremont County, Wyo" 1552: 1454: 1441: 1425: 1412: 1335: 1322: 1651: 1634: 1618: 1605: 1276: 1259: 520: 501: 410: 185: 1580: 1244: 251: 131:
Mancos Shale at its type location just north of Mancos, Colorado
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Late Cretaceous geologic formation of the Western United States
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U.S. Geological Survey Miscellaneous Investigations Series Map
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Landis, Edwin R.; Dane, C.H.; Cobban, William Aubrey (1973).
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New Mexico Bureau of Mines and Mineral Resources Geologic Map
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members of the Mancos Shale as well. The unit was raised to
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New Mexico Bureau of Mines & Mineral Resources Circular
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New Mexico Bureau of Mines and Mineral Resources Bulletins
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and C.W. Purington in 1899, for outcrops near the town of
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nearby. The two geologists also traced the unit into the
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Fisher, D.J.; Erdmann, C.E.; Reeside, J.B. Jr. (1960).
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List of fossiliferous stratigraphic units in New Mexico
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showing the relationship of the Mancos and Mowry shales
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Thus, the classification broadly corresponds with the
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New Mexico Geological Society Field Conference Series
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U.S. Geological Survey Oil and Gas Investigations Map
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List of fossiliferous stratigraphic units in Colorado
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List of fossiliferous stratigraphic units in Wyoming
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List of fossiliferous stratigraphic units in Arizona
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Lee had traced the unit north into the 1119:"Colorado River Basin Stratigraphy: Mancos Shale" 1011:List of fossiliferous stratigraphic units in Utah 1032: 1030: 455:the Mancos Shale fills the interval between the 1699:Geological Symposium of the Four Corners Region 3684: 2829: 2296: 1800: 1758: 1633:Reeside, John B. Jr.; Knowlton, F.H. (1924). 1538:Molenaar, Cornelius M.; Wilson, B.W. (1990). 1505:Bulletin of the Geological Society of America 8: 1231:Nuccio, Vito F.; Condon, Stephen M. (1996). 1201:Lisenbee, Alvis; Maynard, Steve (May 2001). 1734:10.1306/0BDA5927-16BD-11D7-8645000102C1865D 1316: 1314: 1137:Geological Society of America Special Paper 1069:10.1306/0BDA5F6F-16BD-11D7-8645000102C1865D 445:, approximately from 95 million years ago ( 3766: 3728: 3719: 3710: 3699:Precambrian chronostratigraphy of Colorado 3691: 3677: 3669: 3608: 3556: 3547: 3498: 3445: 3366: 3357: 3266: 3138: 3129: 2925: 2886: 2877: 2868: 2857: 2836: 2822: 2814: 2737: 2692: 2665: 2546: 2344: 2335: 2324: 2303: 2289: 2281: 2054: 2045: 1924: 1888: 1879: 1848: 1839: 1828: 1807: 1793: 1785: 1765: 1751: 1743: 466:The lower marine Mancos Shale conformably 125: 29: 1650: 1617: 1588: 1551: 1453: 1424: 1334: 1275: 3828:Upper Cretaceous Series of North America 2844:Paleozoic chronostratigraphy of Colorado 1610:United States Geological Survey Bulletin 1569:United States Geological Survey Bulletin 1544:United States Geological Survey Bulletin 1446:United States Geological Survey Bulletin 1327:United States Geological Survey Bulletin 1237:United States Geological Survey Bulletin 1082: 1080: 1078: 2311:Mesozoic chronostratigraphy of Colorado 1815:Cenozoic chronostratigraphy of Colorado 1026: 430:. The Mancos was deposited during the 3823:Shale formations of the United States 1291:Johnson, S.Y.; Johnson, R.C. (1991). 1042:United States Geological Survey Atlas 7: 917:The Mancos Shale was first named by 354: 326: 3873:Cretaceous formations of New Mexico 1098:(20). New Mexico School of Mines: 5 831:Twowells Tongue of Dakota Formation 1672:Wyoming Geological Survey Bulletin 789:Paguate Tongue of Dakota Formation 25: 1171:Landis, E.R.; Dane, C.H. (1967). 980: 966: 901: 353: 346: 334:Mancos Shale (the United States) 325: 318: 266: 2264:Independence Mountain Formation 1121:United States Geological Survey 3893:Geology of the Rocky Mountains 610:Cooper Arroyo Sandstone Member 510:oil and gas fields within the 1: 3888:Cretaceous geology of Wyoming 3242:Morgan Round Valley Formation 1419:. Professional Paper. 521-E. 337:Show map of the United States 150: 3075:South Canyon Creek Formation 292:San Juan Mountains Provinces 3878:Cretaceous geology of Texas 1321:Franczyk, Karen J. (1989). 1087:Rankin, Charles H. (1944). 543:San Juan Mountains Province 3909: 3883:Cretaceous geology of Utah 3060:Sangre de Cristo Formation 2083:Central Colorado Volcanics 527:Capitol Reef National Park 3668: 3379:Williams Canyon Formation 3285: 3278:Williams Canyon Formation 3202:Jacque Mountain Formation 2813: 2476:Pictured Cliffs Formation 2280: 2259:Gravel Mountain Formation 1784: 774:Niobrara Calcareous Shale 769:Crevasse Canyon Formation 539:Colorado Plateau Province 533:The Mancos occurs in the 525:Mancos Shale badlands in 428:North American Inland Sea 422:The unit is dominated by 312: 124: 37: 3833:Cretaceous United States 3330:Ste. Genevieve Formation 1993:Martins Canyon Formation 1978:Cedar Mountain Formation 1469:Hook, Steven C. (1983). 895:History of investigation 835:Whitewater Arroyo Tongue 604:El Vado Sandstone Member 535:Basin and Range Province 2975:Council Grove Formation 2569:Ralston Creek Formation 2506:Williams Fork Formation 2486:Point Lookout Formation 2160:Poison Canyon Formation 1131:Kirkland, J.I. (1991). 822:Tres Hermanos Formation 362:Mancos Shale (Colorado) 3300:Headscrabble Formation 3182:Eagle Valley Evaporite 3080:Stone Corral Formation 2523:Burro Canyon Formation 2120:Blanco Basin Formation 2030:Grouse Mountain Basalt 2018:Wagon Tongue Formation 1666:Jamison, C.E. (1911). 1266:. Professional Paper. 530: 518: 490:classification of the 419: 3794:Uncompahgre Formation 3427:Pinyon Park Formation 3207:Kansas City Formation 2980:Crestone Conglomerate 2965:Cedar Hills Formation 2630:Glen Canyon Formation 2446:Lion Canyon Formation 2371:Cliff House Sandstone 2366:Castle Gate Formation 2212:Middle Park Formation 2192:Arapahoe Conglomerate 2155:Green River Formation 2008:Troublesome Formation 1973:Browns Park Formation 1604:Lupton, C.T. (1914). 988:Earth sciences portal 919:Charles Whitman Cross 767:Dilco Coal Member of 524: 505: 414: 394:Western United States 3740:Uinta Mountain Group 3407:Kinderhook Formation 3252:Sharpsdale Formation 3187:Glen Eyrie Formation 3100:Wellington Formation 3055:Phosphoria Formation 3050:Owl Canyon Formation 3040:Minnekahta Formation 2528:Horsetooth Formation 2237:South Park Formation 2217:Nacimiento Formation 2207:Fort Union Formation 1998:North Park Formation 1988:Los Pintos Formation 1635:"Professional Paper" 705:Castlegate Sandstone 416:Stratigraphic column 365:Show map of Colorado 3868:Cretaceous Colorado 3325:St. Louis Formation 3305:Leadville Formation 3090:Wabaunsee Formation 3015:Ingleside Formation 2985:Day Creek Formation 2898:Chugwater Formation 2766:Chugwater Formation 2749:Chugwater Formation 2705:Chugwater Formation 2426:Kremmling Formation 2396:Fruitland Formation 2391:Fox Hills Formation 2386:Fort Hays Limestone 2222:Ojo Alamo Formation 2140:Echo Park Formation 1983:Flat Tops Volcanics 1937:Dry Union Formation 1901:Dry Union Formation 1517:1944GSAB...55...91W 1350:Dane, C.H. (1948). 974:Paleontology portal 931:Telluride, Colorado 871:Middle shale member 780:Greenhorn Limestone 721:Greenhorn Limestone 715:Northeast and east 673:West and northwest 655:Greenhorn Limestone 622:Greenhorn Limestone 582:Middle shale member 388:(Upper Cretaceous) 216: /  161:Mesaverde Formation 39:Stratigraphic range 3863:Cretaceous Arizona 3524:Arbuckle Formation 3222:Marmaton Formation 3177:Cherokee Formation 3150:Fountain Formation 3110:Wolfcamp Formation 3005:Glorieta Formation 2938:Fountain Formation 2789:Moenkopi Formation 2723:Moenkopi Formation 2612:Sundance Formation 2564:Morrison Formation 2496:Trinidad Formation 2466:Niobrara Formation 2421:Kirtland Formation 2242:Washakie Formation 2232:San Jose Formation 2227:Raton Conglomerate 2150:Huerfano Formation 2145:Farisita Formation 2098:Pinnacle Formation 2066:Arikaree Formation 2003:Santa Fe Formation 1960:Arikaree Formation 1942:Ogallala Formation 1906:Ogallala Formation 1774:Chronostratigraphy 1525:10.1130/GSAB-55-91 950:lithostratigraphic 879:Lower shale member 867:Frontier Sandstone 863:Upper shale member 853:Anchor Mine Tongue 742:Anchor Mine Tongue 718:Juana Lopez Member 710:Juana Lopez Member 646:Niobrara Formation 614:Juana Lopez Member 585:Lower shale member 576:Upper shale member 531: 519: 420: 390:geologic formation 220:37.353°N 108.297°W 141:Geologic formation 3810: 3809: 3806: 3805: 3802: 3801: 3789: 3788: 3785: 3784: 3778:Owiyukuts Complex 3747: 3746: 3664: 3663: 3660: 3659: 3656: 3655: 3638: 3637: 3634: 3633: 3626:Sawatch Formation 3598: 3597: 3590:Sawatch Formation 3568:Dotsero Formation 3537: 3536: 3529:Manitou Formation 3519: 3518: 3511:Dotsero Formation 3484:Simpson Formation 3479:Harding Sandstone 3457:Fremont Limestone 3435: 3434: 3422:Parting Formation 3412:Misener Formation 3387: 3386: 3347: 3346: 3343: 3342: 3320:Spergen Formation 3232:Minturn Formation 3197:Hermosa Formation 3162: 3161: 3105:White Horse Group 3070:Shawnee Formation 3065:Satanka Formation 3025:Lansing Formation 3010:Hermosa Formation 2995:Forelle Formation 2955: 2954: 2951: 2950: 2915: 2914: 2809: 2808: 2805: 2804: 2801: 2800: 2797: 2796: 2784: 2783: 2713: 2712: 2653: 2652: 2645:Wingate Sandstone 2635:Kayenta Formation 2597:Entrada Formation 2574:Wanakah Formation 2536: 2535: 2501:Vermejo Formation 2456:Menefee Formation 2436:Laramie Formation 2411:Hygiene Formation 2276: 2275: 2272: 2271: 2254: 2253: 2250: 2249: 2197:Bridger Formation 2170:Wasatch Formation 2125:Cuchara Formation 2093:Conejos Formation 2088:Chadron Formation 2073: 2072: 2026: 2025: 1968: 1967: 1914: 1913: 1869: 1868: 1861:Alamosa Formation 1150:978-0-8137-2260-3 892: 891: 827:Rio Salado Tongue 607:Middle shale unit 601:Upper shale unite 579:Hopi Sandy Member 555:structural basins 549:Structural basins 506:Mancos Shale and 470:with terrestrial 453:Stratigraphically 374: 373: 16:(Redirected from 3900: 3843:Cenomanian Stage 3767: 3729: 3720: 3711: 3693: 3686: 3679: 3670: 3648:Tintic Formation 3643:Reagan Formation 3621:Lodore Formation 3609: 3585:Lodore Formation 3557: 3548: 3499: 3446: 3402:Elbert Formation 3367: 3358: 3335:Warsaw Formation 3295:Gilman Formation 3290:Beulah Formation 3267: 3247:Morrow Formation 3227:Maroon Formation 3212:Kerber Formation 3192:Gothic Formation 3172:Belden Formation 3155:Madera Formation 3139: 3130: 3085:Sumner Formation 3045:Opeche Formation 3035:Maroon Formation 3020:Kaibab Limestone 3000:Glendo Formation 2990:Falcon Formation 2960:Blaine Formation 2943:Madera Formation 2926: 2908:Taloga Formation 2903:Lykins Formation 2887: 2878: 2869: 2864: 2858: 2853: 2838: 2831: 2824: 2815: 2776:Taloga Formation 2771:Lykins Formation 2738: 2693: 2678:Chinle Formation 2666: 2661: 2640:Navajo Formation 2592:Carmel Formation 2559:Curtis Formation 2547: 2491:Smoky Hill Chalk 2376:Codell Sandstone 2356:Benton Formation 2345: 2336: 2331: 2325: 2320: 2305: 2298: 2291: 2282: 2202:Denver Formation 2187:Animas Formation 2055: 2046: 2041: 1925: 1889: 1880: 1849: 1840: 1835: 1829: 1824: 1809: 1802: 1795: 1786: 1767: 1760: 1753: 1744: 1738: 1737: 1717: 1711: 1710: 1708: 1706: 1693: 1687: 1686: 1684: 1682: 1663: 1657: 1656: 1654: 1630: 1624: 1623: 1621: 1601: 1595: 1594: 1592: 1564: 1558: 1557: 1555: 1535: 1529: 1528: 1500: 1494: 1493: 1491: 1489: 1475: 1466: 1460: 1459: 1457: 1437: 1431: 1430: 1428: 1408: 1402: 1401: 1399: 1397: 1383: 1374: 1368: 1367: 1365: 1363: 1347: 1341: 1340: 1338: 1318: 1309: 1308: 1306: 1304: 1288: 1282: 1281: 1279: 1255: 1249: 1248: 1228: 1222: 1221: 1219: 1217: 1207: 1198: 1192: 1191: 1189: 1187: 1168: 1162: 1161: 1159: 1157: 1128: 1122: 1116: 1110: 1109: 1104: 1103: 1093: 1084: 1073: 1072: 1052: 1046: 1045: 1034: 990: 985: 984: 983: 976: 971: 970: 969: 942:biostratigraphic 923:Mancos, Colorado 905: 812:Gallup Sandstone 793:Clay Mesa Tongue 688:Ferron Sandstone 618:Lower shale unit 569:Black Mesa Basin 564: 563: 529:, southern Utah. 401:Mancos, Colorado 366: 357: 356: 350: 338: 329: 328: 322: 307:Mancos, Colorado 288:Colorado Plateau 272: 270: 269: 231: 230: 228: 227: 226: 225:37.353; -108.297 221: 217: 214: 213: 212: 209: 129: 120: 57: 30: 21: 3908: 3907: 3903: 3902: 3901: 3899: 3898: 3897: 3853:Santonian Stage 3848:Coniacian Stage 3838:Campanian Stage 3813: 3812: 3811: 3798: 3781: 3756: 3743: 3700: 3697: 3652: 3630: 3594: 3571: 3533: 3515: 3488: 3465: 3462:Viola Formation 3431: 3417:Ouray Formation 3392:Aneth Formation 3383: 3339: 3315:Osage Formation 3310:Molas Formation 3281: 3256: 3237:Molas Formation 3217:Keyes Formation 3167:Atoka Formation 3158: 3119: 3095:Weber Formation 3030:Lyons Formation 2970:Chase Formation 2947: 2911: 2862: 2851: 2845: 2842: 2793: 2780: 2752: 2727: 2709: 2682: 2659: 2649: 2616: 2578: 2532: 2509: 2441:Lewis Formation 2431:Lance Formation 2406:Greenhorn Shale 2329: 2318: 2312: 2309: 2268: 2246: 2173: 2165:Uinta Formation 2107: 2103:Pitch Formation 2078:Brule Formation 2069: 2039: 2033: 2022: 2013:Trump Formation 1964: 1946: 1910: 1865: 1833: 1822: 1816: 1813: 1780: 1771: 1741: 1719: 1718: 1714: 1704: 1702: 1695: 1694: 1690: 1680: 1678: 1665: 1664: 1660: 1632: 1631: 1627: 1603: 1602: 1598: 1566: 1565: 1561: 1537: 1536: 1532: 1502: 1501: 1497: 1487: 1485: 1473: 1468: 1467: 1463: 1439: 1438: 1434: 1410: 1409: 1405: 1395: 1393: 1381: 1376: 1375: 1371: 1361: 1359: 1349: 1348: 1344: 1320: 1319: 1312: 1302: 1300: 1290: 1289: 1285: 1257: 1256: 1252: 1230: 1229: 1225: 1215: 1213: 1205: 1200: 1199: 1195: 1185: 1183: 1170: 1169: 1165: 1155: 1153: 1151: 1130: 1129: 1125: 1117: 1113: 1101: 1099: 1091: 1086: 1085: 1076: 1054: 1053: 1049: 1044:. Vol. 57. 1036: 1035: 1028: 1024: 986: 981: 979: 972: 967: 965: 962: 915: 914: 913: 911: 906: 897: 684:Blue Gate Shale 681:Emery Sandstone 551: 500: 409: 386:Late Cretaceous 370: 369: 368: 367: 364: 363: 360: 359: 358: 341: 340: 339: 336: 335: 332: 331: 330: 284:Basin and Range 267: 265: 224: 222: 218: 215: 210: 207: 205: 203: 202: 132: 119: 118: 113: 108: 103: 98: 93: 88: 83: 78: 73: 68: 63: 52: 51: 49: 28: 23: 22: 15: 12: 11: 5: 3906: 3904: 3896: 3895: 3890: 3885: 3880: 3875: 3870: 3865: 3860: 3858:Turonian Stage 3855: 3850: 3845: 3840: 3835: 3830: 3825: 3815: 3814: 3808: 3807: 3804: 3803: 3800: 3799: 3797: 3796: 3790: 3787: 3786: 3783: 3782: 3780: 3775: 3773: 3764: 3758: 3757: 3755: 3754: 3752:Tava Formation 3748: 3745: 3744: 3742: 3737: 3735: 3726: 3717: 3708: 3702: 3701: 3698: 3696: 3695: 3688: 3681: 3673: 3666: 3665: 3662: 3661: 3658: 3657: 3654: 3653: 3651: 3650: 3645: 3639: 3636: 3635: 3632: 3631: 3629: 3628: 3623: 3617: 3615: 3606: 3600: 3599: 3596: 3595: 3593: 3592: 3587: 3581: 3579: 3573: 3572: 3570: 3565: 3563: 3554: 3545: 3539: 3538: 3535: 3534: 3532: 3531: 3526: 3520: 3517: 3516: 3514: 3513: 3507: 3505: 3496: 3490: 3489: 3487: 3486: 3481: 3475: 3473: 3467: 3466: 3464: 3459: 3454: 3452: 3443: 3437: 3436: 3433: 3432: 3430: 3429: 3424: 3419: 3414: 3409: 3404: 3399: 3397:Dyer Formation 3394: 3388: 3385: 3384: 3382: 3381: 3375: 3373: 3364: 3355: 3349: 3348: 3345: 3344: 3341: 3340: 3338: 3337: 3332: 3327: 3322: 3317: 3312: 3307: 3302: 3297: 3292: 3286: 3283: 3282: 3280: 3275: 3273: 3264: 3258: 3257: 3255: 3254: 3249: 3244: 3239: 3234: 3229: 3224: 3219: 3214: 3209: 3204: 3199: 3194: 3189: 3184: 3179: 3174: 3169: 3163: 3160: 3159: 3157: 3152: 3147: 3145: 3136: 3127: 3121: 3120: 3118: 3117: 3115:Yeso Formation 3112: 3107: 3102: 3097: 3092: 3087: 3082: 3077: 3072: 3067: 3062: 3057: 3052: 3047: 3042: 3037: 3032: 3027: 3022: 3017: 3012: 3007: 3002: 2997: 2992: 2987: 2982: 2977: 2972: 2967: 2962: 2956: 2953: 2952: 2949: 2948: 2946: 2945: 2940: 2934: 2932: 2923: 2917: 2916: 2913: 2912: 2910: 2905: 2900: 2895: 2893: 2884: 2875: 2866: 2855: 2847: 2846: 2843: 2841: 2840: 2833: 2826: 2818: 2811: 2810: 2807: 2806: 2803: 2802: 2799: 2798: 2795: 2794: 2792: 2791: 2785: 2782: 2781: 2779: 2778: 2773: 2768: 2762: 2760: 2754: 2753: 2751: 2746: 2744: 2735: 2729: 2728: 2726: 2725: 2720: 2718:Jelm Formation 2714: 2711: 2710: 2708: 2707: 2701: 2699: 2690: 2684: 2683: 2681: 2680: 2674: 2672: 2663: 2655: 2654: 2651: 2650: 2648: 2647: 2642: 2637: 2632: 2626: 2624: 2618: 2617: 2615: 2614: 2609: 2607:Page Formation 2604: 2602:Garo Formation 2599: 2594: 2588: 2586: 2580: 2579: 2577: 2576: 2571: 2566: 2561: 2555: 2553: 2544: 2538: 2537: 2534: 2533: 2531: 2530: 2525: 2519: 2517: 2511: 2510: 2508: 2503: 2498: 2493: 2488: 2483: 2478: 2473: 2471:Pando Porphyry 2468: 2463: 2458: 2453: 2448: 2443: 2438: 2433: 2428: 2423: 2418: 2413: 2408: 2403: 2401:Graneros Shale 2398: 2393: 2388: 2383: 2378: 2373: 2368: 2363: 2358: 2353: 2351: 2342: 2333: 2322: 2314: 2313: 2310: 2308: 2307: 2300: 2293: 2285: 2278: 2277: 2274: 2273: 2270: 2269: 2267: 2266: 2261: 2255: 2252: 2251: 2248: 2247: 2245: 2244: 2239: 2234: 2229: 2224: 2219: 2214: 2209: 2204: 2199: 2194: 2189: 2183: 2181: 2175: 2174: 2172: 2167: 2162: 2157: 2152: 2147: 2142: 2137: 2132: 2127: 2122: 2117: 2115: 2109: 2108: 2106: 2105: 2100: 2095: 2090: 2085: 2080: 2074: 2071: 2070: 2068: 2063: 2061: 2052: 2043: 2035: 2034: 2032: 2027: 2024: 2023: 2021: 2020: 2015: 2010: 2005: 2000: 1995: 1990: 1985: 1980: 1975: 1969: 1966: 1965: 1963: 1962: 1956: 1954: 1948: 1947: 1945: 1944: 1939: 1933: 1931: 1922: 1916: 1915: 1912: 1911: 1909: 1908: 1903: 1897: 1895: 1886: 1877: 1871: 1870: 1867: 1866: 1864: 1863: 1857: 1855: 1846: 1837: 1826: 1818: 1817: 1814: 1812: 1811: 1804: 1797: 1789: 1782: 1781: 1772: 1770: 1769: 1762: 1755: 1747: 1740: 1739: 1712: 1688: 1658: 1625: 1596: 1559: 1553:10.3133/b1787M 1530: 1495: 1461: 1455:10.3133/b1372J 1432: 1426:10.3133/pp521E 1403: 1369: 1342: 1336:10.3133/b1787F 1310: 1283: 1250: 1239:. 2000-O: O6. 1223: 1193: 1163: 1149: 1123: 1111: 1074: 1047: 1025: 1023: 1020: 1019: 1018: 1013: 1008: 1003: 998: 992: 991: 977: 961: 958: 946:Colorado Group 925:and along the 908: 907: 900: 899: 898: 896: 893: 890: 889: 888: 887: 886: 885: 880: 877: 872: 869: 864: 861: 858:Sego Sandstone 854: 848: 847: 840: 839: 838: 837: 836: 833: 828: 825: 818: 817:Pescado Tongue 815: 808: 807:D-Cross Tongue 802: 801: 797: 796: 795: 794: 791: 786: 784:Graneros Shale 781: 778: 775: 772: 764: 763:Mulatto Tongue 758: 757: 755:San Juan Basin 750: 749: 748: 747: 746: 743: 740: 734: 733: 731:Piceance Basin 727: 726: 725: 724: 723: 722: 719: 713: 712: 711: 708: 701: 695: 694: 693: 690: 685: 682: 679: 668: 667: 660: 659: 658: 657: 656: 653: 648: 640: 639: 638:(Mancos Group) 636:Estancia Basin 632: 631: 630: 629: 627:Graneros Shale 624: 619: 616: 611: 608: 605: 602: 596: 595: 589: 588: 587: 586: 583: 580: 577: 571: 570: 550: 547: 516:Piceance Basin 499: 496: 488:Colorado Group 408: 405: 372: 371: 361: 352: 351: 345: 344: 343: 342: 333: 324: 323: 317: 316: 315: 314: 313: 310: 309: 304: 300: 299: 295: 294: 281: 277: 276: 263: 259: 258: 237: 233: 232: 200: 194: 193: 189: 188: 183: 179: 178: 174: 173: 168: 164: 163: 158: 154: 153: 148: 144: 143: 138: 134: 133: 130: 122: 121: 114: 109: 104: 99: 94: 89: 84: 79: 74: 69: 64: 59: 58: 35: 34: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3905: 3894: 3891: 3889: 3886: 3884: 3881: 3879: 3876: 3874: 3871: 3869: 3866: 3864: 3861: 3859: 3856: 3854: 3851: 3849: 3846: 3844: 3841: 3839: 3836: 3834: 3831: 3829: 3826: 3824: 3821: 3820: 3818: 3795: 3792: 3791: 3779: 3776: 3774: 3772: 3768: 3765: 3763: 3759: 3753: 3750: 3749: 3741: 3738: 3736: 3734: 3730: 3727: 3725: 3721: 3718: 3716: 3712: 3709: 3707: 3703: 3694: 3689: 3687: 3682: 3680: 3675: 3674: 3671: 3667: 3649: 3646: 3644: 3641: 3640: 3627: 3624: 3622: 3619: 3618: 3616: 3614: 3610: 3607: 3605: 3601: 3591: 3588: 3586: 3583: 3582: 3580: 3578: 3574: 3569: 3566: 3564: 3562: 3558: 3555: 3553: 3549: 3546: 3544: 3540: 3530: 3527: 3525: 3522: 3521: 3512: 3509: 3508: 3506: 3504: 3500: 3497: 3495: 3491: 3485: 3482: 3480: 3477: 3476: 3474: 3472: 3468: 3463: 3460: 3458: 3455: 3453: 3451: 3447: 3444: 3442: 3438: 3428: 3425: 3423: 3420: 3418: 3415: 3413: 3410: 3408: 3405: 3403: 3400: 3398: 3395: 3393: 3390: 3389: 3380: 3377: 3376: 3374: 3372: 3368: 3365: 3363: 3359: 3356: 3354: 3350: 3336: 3333: 3331: 3328: 3326: 3323: 3321: 3318: 3316: 3313: 3311: 3308: 3306: 3303: 3301: 3298: 3296: 3293: 3291: 3288: 3287: 3284: 3279: 3276: 3274: 3272: 3268: 3265: 3263: 3259: 3253: 3250: 3248: 3245: 3243: 3240: 3238: 3235: 3233: 3230: 3228: 3225: 3223: 3220: 3218: 3215: 3213: 3210: 3208: 3205: 3203: 3200: 3198: 3195: 3193: 3190: 3188: 3185: 3183: 3180: 3178: 3175: 3173: 3170: 3168: 3165: 3164: 3156: 3153: 3151: 3148: 3146: 3144: 3140: 3137: 3135: 3131: 3128: 3126: 3122: 3116: 3113: 3111: 3108: 3106: 3103: 3101: 3098: 3096: 3093: 3091: 3088: 3086: 3083: 3081: 3078: 3076: 3073: 3071: 3068: 3066: 3063: 3061: 3058: 3056: 3053: 3051: 3048: 3046: 3043: 3041: 3038: 3036: 3033: 3031: 3028: 3026: 3023: 3021: 3018: 3016: 3013: 3011: 3008: 3006: 3003: 3001: 2998: 2996: 2993: 2991: 2988: 2986: 2983: 2981: 2978: 2976: 2973: 2971: 2968: 2966: 2963: 2961: 2958: 2957: 2944: 2941: 2939: 2936: 2935: 2933: 2931: 2927: 2924: 2922: 2918: 2909: 2906: 2904: 2901: 2899: 2896: 2894: 2892: 2891:Changhsingian 2888: 2885: 2883: 2879: 2876: 2874: 2870: 2867: 2865: 2859: 2856: 2854: 2848: 2839: 2834: 2832: 2827: 2825: 2820: 2819: 2816: 2812: 2790: 2787: 2786: 2777: 2774: 2772: 2769: 2767: 2764: 2763: 2761: 2759: 2755: 2750: 2747: 2745: 2743: 2739: 2736: 2734: 2730: 2724: 2721: 2719: 2716: 2715: 2706: 2703: 2702: 2700: 2698: 2694: 2691: 2689: 2685: 2679: 2676: 2675: 2673: 2671: 2667: 2664: 2662: 2656: 2646: 2643: 2641: 2638: 2636: 2633: 2631: 2628: 2627: 2625: 2623: 2619: 2613: 2610: 2608: 2605: 2603: 2600: 2598: 2595: 2593: 2590: 2589: 2587: 2585: 2581: 2575: 2572: 2570: 2567: 2565: 2562: 2560: 2557: 2556: 2554: 2552: 2548: 2545: 2543: 2539: 2529: 2526: 2524: 2521: 2520: 2518: 2516: 2512: 2507: 2504: 2502: 2499: 2497: 2494: 2492: 2489: 2487: 2484: 2482: 2479: 2477: 2474: 2472: 2469: 2467: 2464: 2462: 2459: 2457: 2454: 2452: 2449: 2447: 2444: 2442: 2439: 2437: 2434: 2432: 2429: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2404: 2402: 2399: 2397: 2394: 2392: 2389: 2387: 2384: 2382: 2379: 2377: 2374: 2372: 2369: 2367: 2364: 2362: 2361:Carlile Shale 2359: 2357: 2354: 2352: 2350: 2346: 2343: 2341: 2337: 2334: 2332: 2326: 2323: 2321: 2315: 2306: 2301: 2299: 2294: 2292: 2287: 2286: 2283: 2279: 2265: 2262: 2260: 2257: 2256: 2243: 2240: 2238: 2235: 2233: 2230: 2228: 2225: 2223: 2220: 2218: 2215: 2213: 2210: 2208: 2205: 2203: 2200: 2198: 2195: 2193: 2190: 2188: 2185: 2184: 2182: 2180: 2176: 2171: 2168: 2166: 2163: 2161: 2158: 2156: 2153: 2151: 2148: 2146: 2143: 2141: 2138: 2136: 2135:Dawson Arkose 2133: 2131: 2128: 2126: 2123: 2121: 2118: 2116: 2114: 2110: 2104: 2101: 2099: 2096: 2094: 2091: 2089: 2086: 2084: 2081: 2079: 2076: 2075: 2067: 2064: 2062: 2060: 2056: 2053: 2051: 2047: 2044: 2042: 2036: 2031: 2028: 2019: 2016: 2014: 2011: 2009: 2006: 2004: 2001: 1999: 1996: 1994: 1991: 1989: 1986: 1984: 1981: 1979: 1976: 1974: 1971: 1970: 1961: 1958: 1957: 1955: 1953: 1949: 1943: 1940: 1938: 1935: 1934: 1932: 1930: 1926: 1923: 1921: 1917: 1907: 1904: 1902: 1899: 1898: 1896: 1894: 1890: 1887: 1885: 1881: 1878: 1876: 1872: 1862: 1859: 1858: 1856: 1854: 1850: 1847: 1845: 1841: 1838: 1836: 1830: 1827: 1825: 1819: 1810: 1805: 1803: 1798: 1796: 1791: 1790: 1787: 1783: 1779: 1775: 1768: 1763: 1761: 1756: 1754: 1749: 1748: 1745: 1735: 1731: 1727: 1723: 1722:AAPG Bulletin 1716: 1713: 1701: 1700: 1692: 1689: 1677: 1673: 1669: 1662: 1659: 1653: 1652:10.3133/pp134 1648: 1644: 1640: 1636: 1629: 1626: 1620: 1619:10.3133/b541D 1615: 1611: 1607: 1600: 1597: 1591: 1586: 1582: 1578: 1574: 1570: 1563: 1560: 1554: 1549: 1545: 1541: 1534: 1531: 1526: 1522: 1518: 1514: 1511:(1): 91–130. 1510: 1506: 1499: 1496: 1483: 1479: 1472: 1465: 1462: 1456: 1451: 1447: 1443: 1436: 1433: 1427: 1422: 1418: 1414: 1407: 1404: 1391: 1387: 1380: 1373: 1370: 1357: 1353: 1346: 1343: 1337: 1332: 1328: 1324: 1317: 1315: 1311: 1298: 1294: 1287: 1284: 1278: 1277:10.3133/pp332 1273: 1269: 1265: 1261: 1254: 1251: 1246: 1242: 1238: 1234: 1227: 1224: 1211: 1204: 1197: 1194: 1182: 1178: 1174: 1167: 1164: 1152: 1146: 1142: 1138: 1134: 1127: 1124: 1120: 1115: 1112: 1108: 1097: 1090: 1083: 1081: 1079: 1075: 1070: 1066: 1062: 1058: 1057:AAPG Bulletin 1051: 1048: 1043: 1039: 1033: 1031: 1027: 1021: 1017: 1014: 1012: 1009: 1007: 1004: 1002: 999: 997: 994: 993: 989: 978: 975: 964: 959: 957: 955: 951: 947: 943: 938: 936: 932: 928: 924: 920: 910: 904: 894: 884: 881: 878: 876: 873: 870: 868: 865: 862: 860: 859: 855: 852: 851: 850: 849: 846: 843: 842: 841: 834: 832: 829: 826: 824: 823: 819: 816: 814: 813: 809: 806: 805: 804: 803: 800:Socorro Basin 799: 798: 792: 790: 787: 785: 782: 779: 777:Carlile Shale 776: 773: 771: 770: 765: 762: 761: 760: 759: 756: 753: 752: 751: 744: 741: 738: 737: 736: 735: 732: 729: 728: 720: 717: 716: 714: 709: 707: 706: 702: 699: 698: 696: 691: 689: 686: 683: 680: 678: 675: 674: 672: 671: 670: 669: 666: 665:Paradox Basin 663: 662: 661: 654: 652: 651:Carlile Shale 649: 647: 644: 643: 642: 641: 637: 634: 633: 628: 625: 623: 620: 617: 615: 612: 609: 606: 603: 600: 599: 598: 597: 594: 591: 590: 584: 581: 578: 575: 574: 573: 572: 568: 567: 566: 565: 562: 560: 556: 548: 546: 544: 540: 536: 528: 523: 517: 513: 509: 504: 497: 495: 493: 489: 484: 482: 478: 473: 469: 464: 462: 458: 454: 450: 448: 444: 441: 437: 433: 429: 425: 417: 413: 406: 404: 402: 397: 395: 391: 387: 383: 379: 349: 321: 311: 308: 305: 301: 296: 293: 289: 285: 282: 278: 275: 274:United States 264: 260: 257: 253: 249: 245: 241: 238: 234: 229: 201: 199: 195: 190: 187: 184: 180: 175: 172: 169: 165: 162: 159: 155: 152: 149: 145: 142: 139: 135: 128: 123: 117: 112: 107: 102: 97: 92: 87: 82: 77: 72: 67: 62: 56: 48: 44: 40: 36: 31: 19: 2481:Pierre Shale 2451:Mancos Shale 2450: 2381:Dakota Group 1725: 1721: 1715: 1705:21 September 1703:. Retrieved 1698: 1691: 1681:21 September 1679:. Retrieved 1675: 1671: 1661: 1642: 1638: 1628: 1609: 1599: 1581:10.3133/b510 1572: 1568: 1562: 1543: 1533: 1508: 1504: 1498: 1488:17 September 1486:. Retrieved 1481: 1477: 1464: 1445: 1435: 1416: 1406: 1396:15 September 1394:. Retrieved 1389: 1385: 1372: 1362:16 September 1360:. Retrieved 1355: 1345: 1326: 1303:15 September 1301:. Retrieved 1296: 1286: 1267: 1263: 1253: 1245:10.3133/b00O 1236: 1226: 1216:16 September 1214:. Retrieved 1209: 1196: 1186:17 September 1184:. Retrieved 1180: 1176: 1166: 1156:16 September 1154:. Retrieved 1140: 1136: 1126: 1114: 1106: 1100:. Retrieved 1095: 1060: 1056: 1050: 1041: 939: 927:Mancos River 916: 856: 845:Uintah Basin 830: 820: 810: 788: 766: 703: 692:Tununk Shale 677:Masuk Member 552: 532: 492:Great Plains 485: 468:intertongues 465: 451: 449:) to 80 Ma. 421: 398: 382:Mancos Group 381: 378:Mancos Shale 377: 375: 298:Type section 171:Dakota Group 53:110–80  33:Mancos Shale 18:Mancos Group 3503:Tremadocian 3271:Tournaisian 2461:Mowry Shale 2416:Juana Lopez 2130:D2 Sequence 1853:Pleistocene 1038:Cross, C.W. 883:Mowry Shale 875:Aspen Shale 739:Buck Tongue 700:Buck Tongue 593:Chama Basin 559:intertongue 557:that often 512:Uinta Basin 508:Mowry Shale 498:Occurrences 477:Skull Creek 223: / 211:108°17′49″W 198:Coordinates 3817:Categories 3613:Guzhangian 2921:Cisuralian 1952:Aquitanian 1590:2346/65145 1546:. 1787-M. 1448:. 1372-J. 1329:. 1787-F. 1299:. I-2184-A 1212:. OF-GM 48 1102:2018-08-13 1022:References 954:group rank 935:Grand Mesa 541:, and the 472:sandstones 438:) through 432:Cenomanian 248:New Mexico 208:37°21′11″N 43:Mid Albian 3552:Furongian 3371:Famennian 2882:Lopingian 2742:Olenekian 2179:Paleocene 2050:Oligocene 1929:Messinian 1612:. 541-D. 1392:: 218–226 745:Main body 461:Mesaverde 440:Campanian 434:(locally 303:Named for 177:Lithology 157:Underlies 147:Sub-units 47:Campanian 3771:Siderian 3604:Series 3 3561:Stage 10 3143:Gzhelian 2930:Asselian 2059:Chattian 1893:Zanclean 1884:Pliocene 1778:Colorado 1063:: 1–20. 960:See also 481:Graneros 459:and the 244:Colorado 192:Location 167:Overlies 151:See text 3577:Paibian 2697:Anisian 1920:Miocene 1513:Bibcode 1484:: 15–16 1358:. OM-78 475:(e.g., 463:Group. 424:mudrock 407:Geology 392:of the 262:Country 256:Wyoming 240:Arizona 182:Primary 3733:Tonian 3471:Middle 2758:Induan 2688:Middle 2584:Middle 2113:Eocene 1147:  1143:: 88. 697:North 537:, the 457:Dakota 436:Albian 290:& 280:Extent 271:  236:Region 3494:Lower 3450:Upper 3362:Upper 2733:Lower 2670:Upper 2622:Lower 2551:Upper 2515:Lower 2349:Upper 1474:(PDF) 1382:(PDF) 1206:(PDF) 1092:(PDF) 384:is a 186:Shale 1707:2021 1683:2021 1490:2021 1398:2021 1364:2021 1305:2021 1218:2021 1188:2021 1158:2021 1145:ISBN 514:and 443:ages 376:The 252:Utah 137:Type 61:PreꞒ 1776:of 1730:doi 1647:doi 1643:134 1614:doi 1585:hdl 1577:doi 1573:510 1548:doi 1521:doi 1482:185 1450:doi 1421:doi 1331:doi 1272:doi 1268:332 1241:doi 1141:260 1065:doi 380:or 3819:: 3706:pЄ 2863:Pz 2852:Ph 2660:Tr 2330:Mz 2319:Ph 2040:Pe 1834:Cz 1823:Ph 1728:. 1726:41 1724:. 1676:2B 1674:. 1670:. 1645:. 1641:. 1637:. 1608:. 1583:. 1575:. 1571:. 1542:. 1519:. 1509:55 1507:. 1480:. 1476:. 1444:. 1415:. 1390:56 1388:. 1384:. 1354:. 1325:. 1313:^ 1295:. 1270:. 1262:. 1235:. 1208:. 1181:19 1179:. 1175:. 1139:. 1135:. 1105:. 1094:. 1077:^ 1061:44 1059:. 1029:^ 545:. 479:, 447:Ma 403:. 396:. 286:, 254:, 250:, 246:, 242:, 111:Pg 55:Ma 41:: 3762:X 3724:Z 3715:♇ 3692:e 3685:t 3678:v 3543:Є 3441:O 3353:D 3262:M 3134:⁋ 3125:C 2873:P 2837:e 2830:t 2823:v 2542:J 2340:K 2304:e 2297:t 2290:v 1875:N 1844:Q 1808:e 1801:t 1794:v 1766:e 1759:t 1752:v 1736:. 1732:: 1709:. 1685:. 1655:. 1649:: 1622:. 1616:: 1593:. 1587:: 1579:: 1556:. 1550:: 1527:. 1523:: 1515:: 1492:. 1458:. 1452:: 1429:. 1423:: 1400:. 1366:. 1339:. 1333:: 1307:. 1280:. 1274:: 1247:. 1243:: 1220:. 1190:. 1160:. 1071:. 1067:: 116:N 106:K 101:J 96:T 91:P 86:C 81:D 76:S 71:O 66:Ꞓ 50:~ 45:- 20:)

Index

Mancos Group
Stratigraphic range
Mid Albian
Campanian
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Geologic formation
See text
Mesaverde Formation
Dakota Group
Shale
Coordinates
37°21′11″N 108°17′49″W / 37.353°N 108.297°W / 37.353; -108.297
Arizona
Colorado
New Mexico
Utah
Wyoming

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