Knowledge (XXG)

Khorat Group

Source πŸ“

113: 227: 309:, which is now excluded from the group. Subsequently the sequence underwent several different stratigraphic proposals with several alternative divisions, but the formations proposed in Ward and Bunnag are the most widely used. Initially thought to be 337:. It consists of continental freshwater deposits largely of alternating sandstones and mudstones. The Group is notable for its fossil content, including those of dinosaurs. 305:
by Brown et al in 1953 and was redefined as the Khorat Group by Ward and Bunnag in 1964, which gave it its current constituent formations as well as including the
437: 432: 112: 376:
Racey, Andrew; Goodall, Jeffery G. S. (2009). "Palynology and stratigraphy of the Mesozoic Khorat Group red bed sequences from Thailand".
427: 442: 334: 170: 385: 158: 390: 286: 153: 138: 126: 326: 306: 180: 148: 143: 403: 395: 314: 290: 257: 214: 421: 71: 24: 46: 318: 91: 56: 28: 407: 330: 195: 96: 40: 310: 298: 232: 199: 117:
Location of the Khorat Group within the Khorat Plateau (Brown and yellow)
86: 81: 66: 61: 51: 101: 76: 355: 322: 32: 399: 294: 242: 363:
Workshop on Stratigraphic Correlation of Thailand and Malaysia
356:"Review of the Continental Mesozoic Stratigraphy of Thailand" 271: 263: 253: 248: 238: 220: 210: 205: 191: 186: 176: 166: 132: 122: 18: 378:Geological Society, London, Special Publications 8: 111: 15: 389: 346: 313:, the sequence has been shown to be of 7: 14: 225: 438:Lower Cretaceous Series of Asia 433:Geologic formations of Thailand 301:. It was first defined as the 1: 459: 354:Sattayarak, Nares (1983). 110: 23: 317:in age, Dating from the 428:Geologic groups of Asia 335:Maha Sarakham Formation 329:and is overlain by the 171:Maha Sarakham Formation 159:Phu Kradung Formation 154:Phra Wihan Formation 139:Khok Kruat Formation 443:Cretaceous Thailand 327:Nam Phong Formation 307:Nam Phong Formation 289:located within the 287:stratigraphic group 181:Nam Phong Formation 127:stratigraphic group 25:Stratigraphic range 325:. It overlies the 149:Sao Khua Formation 144:Phu Phan Formation 279: 278: 267:Ward & Bunnag 450: 412: 411: 393: 391:10.1.1.1030.8425 373: 367: 366: 360: 351: 333:deposits of the 315:Early Cretaceous 231: 229: 228: 115: 106: 43: 16: 458: 457: 453: 452: 451: 449: 448: 447: 418: 417: 416: 415: 400:10.1144/sp315.6 375: 374: 370: 358: 353: 352: 348: 343: 226: 224: 118: 105: 104: 99: 94: 89: 84: 79: 74: 69: 64: 59: 54: 49: 38: 37: 35: 12: 11: 5: 456: 454: 446: 445: 440: 435: 430: 420: 419: 414: 413: 368: 345: 344: 342: 339: 291:Khorat Plateau 277: 276: 273: 269: 268: 265: 261: 260: 258:Khorat Plateau 255: 251: 250: 246: 245: 240: 236: 235: 222: 218: 217: 215:Southeast Asia 212: 208: 207: 203: 202: 193: 189: 188: 184: 183: 178: 174: 173: 168: 164: 163: 162: 161: 156: 151: 146: 141: 134: 130: 129: 124: 120: 119: 116: 108: 107: 100: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 45: 44: 21: 20: 13: 10: 9: 6: 4: 3: 2: 455: 444: 441: 439: 436: 434: 431: 429: 426: 425: 423: 409: 405: 401: 397: 392: 387: 383: 379: 372: 369: 364: 357: 350: 347: 340: 338: 336: 332: 328: 324: 320: 316: 312: 308: 304: 303:Khorat Series 300: 296: 292: 288: 284: 274: 270: 266: 262: 259: 256: 252: 247: 244: 241: 237: 234: 223: 219: 216: 213: 209: 204: 201: 197: 194: 190: 185: 182: 179: 175: 172: 169: 165: 160: 157: 155: 152: 150: 147: 145: 142: 140: 137: 136: 135: 131: 128: 125: 121: 114: 109: 103: 98: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 42: 39:145–113  34: 30: 26: 22: 17: 384:(1): 69–83. 381: 377: 371: 362: 349: 302: 283:Khorat Group 282: 280: 272:Year defined 249:Type section 19:Khorat Group 422:Categories 341:References 331:evaporitic 319:Berriasian 297:region of 29:Berriasian 408:0305-8719 386:CiteSeerX 254:Named for 196:Sandstone 187:Lithology 167:Underlies 133:Sub-units 311:Triassic 299:Thailand 264:Named by 233:Thailand 206:Location 200:mudstone 177:Overlies 293:in the 221:Country 192:Primary 406:  388:  323:Aptian 239:Extent 230:  211:Region 33:Aptian 359:(PDF) 285:is a 404:ISSN 295:Isan 281:The 275:1964 243:Isan 123:Type 47:Preκž’ 396:doi 382:315 321:to 424:: 402:. 394:. 380:. 361:. 198:, 97:Pg 41:Ma 27:: 410:. 398:: 365:. 102:N 92:K 87:J 82:T 77:P 72:C 67:D 62:S 57:O 52:κž’ 36:~ 31:-

Index

Stratigraphic range
Berriasian
Aptian
Ma
Preκž’
κž’
O
S
D
C
P
T
J
K
Pg
N

stratigraphic group
Khok Kruat Formation
Phu Phan Formation
Sao Khua Formation
Phra Wihan Formation
Phu Kradung Formation
Maha Sarakham Formation
Nam Phong Formation
Sandstone
mudstone
Southeast Asia
Thailand
Isan

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