Knowledge (XXG)

Aalter Formation

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and forms a maximally 30 meters thick layer in the subsurface. To the east, the formation wedges out and becomes thinner. Due to this wedging out, the formation does not occur anymore in the
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can be found on top of the Aalter Formation. Both are like the Aalter Formation part of the Zenne Group. Stratigraphically below the Aalter Formation are deposits of the
499: 560: 338: 525: 492: 446: 530: 535: 439: 472: 128: 321: 545: 540: 555: 189: 432: 235: 132: 42: 205: 201: 365:"Urobatis molleni nov.sp. (Chondrichthyes, Myliobatiformes, Urolophidae) in the Eocene of Belgium" 227: 476: 416: 169: 550: 317: 154: 255: 231: 140: 112: 519: 313: 219: 165: 124: 24: 469: 204:). The top of the formation consists of fossil rich, glauconiferous fine sand (the 223: 150:, deposited in the shallow sea that covered northern and central Belgium in the 408: 173: 193: 292: 216: 212: 32: 28: 461: 161: 136: 84: 66: 197: 151: 120: 99: 181: 222:, giving it an age of around 48 million years. It is part of the 185: 177: 147: 143: 394:
Paleogene and Neogene lithostratigraphic units (Belgium)
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Hovestadt, Dirk; Hovestadt-Euler, M. (January 2010).
95: 90: 72: 61: 56: 48: 38: 18: 192:). On top of this is a sequence of clay, sand and 211:The Aalter Formation was formed during the late 500: 440: 8: 119:, abbreviation: Aa; named after the town of 396:, Geologica Belgica 4(1-2), p. 135-152 507: 493: 447: 433: 230:. If the Brussel Formation is absent, the 15: 339:List of sedimentary formations in Belgium 306:Venericarda planicosta lerichei horizon. 253: 238:(late Ypresian marine clays and sands). 172:. The base of the formation consists of 350: 164:in the provinces of East Flanders and 7: 458: 456: 405: 403: 390:Laga, P.; Louwye, S. & Geets, S. 358: 356: 354: 479:. You can help Knowledge (XXG) by 419:. You can help Knowledge (XXG) by 415:This Belgium-related article is a 14: 561:European geologic formation stubs 258:reported from the Tielt Formation 460: 407: 77: 180:alternating with organic rich ( 526:Geologic formations of Belgium 468:This article about a specific 1: 52:up to 30 metres (100 ft) 139:. The formation consists of 577: 455: 402: 23: 531:Eocene Series of Europe 274:Stratigraphic position 226:and is covered by the 116: 160:The Aalter Formation 316:also known from the 236:Gentbrugge Formation 43:Geological formation 190:Aalterbrugge Member 170:province of Antwerp 117:Formatie van Aalter 25:Stratigraphic range 129:geologic formation 536:Paleogene Belgium 488: 487: 428: 427: 369:Geominpal Belgica 330: 329: 228:Brussel Formation 105: 104: 568: 509: 502: 495: 464: 457: 449: 442: 435: 411: 404: 391: 377: 376: 360: 309:Numerous teeth. 251: 196:layers, rich in 109:Aalter Formation 83: 81: 80: 19:Aalter Formation 16: 576: 575: 571: 570: 569: 567: 566: 565: 516: 515: 514: 513: 475:in Europe is a 454: 453: 400: 389: 386: 381: 380: 362: 361: 352: 347: 335: 249: 244: 78: 76: 12: 11: 5: 574: 572: 564: 563: 558: 553: 548: 546:Ypresian Stage 543: 541:Lutetian Stage 538: 533: 528: 518: 517: 512: 511: 504: 497: 489: 486: 485: 465: 452: 451: 444: 437: 429: 426: 425: 412: 398: 397: 392:(eds.); 2001: 385: 382: 379: 378: 349: 348: 346: 343: 342: 341: 334: 331: 328: 327: 325: 310: 307: 304: 301: 296: 288: 287: 284: 281: 276: 271: 268: 265: 261: 260: 256:Chondrichthyes 248: 247:Chondrichthyes 245: 243: 242:Fossil content 240: 232:Lede Formation 206:Oedelem Member 202:Beernem Member 188:) layers (the 174:glauconiferous 103: 102: 97: 93: 92: 88: 87: 74: 70: 69: 63: 59: 58: 54: 53: 50: 46: 45: 40: 36: 35: 21: 20: 13: 10: 9: 6: 4: 3: 2: 573: 562: 559: 557: 556:Belgium stubs 554: 552: 549: 547: 544: 542: 539: 537: 534: 532: 529: 527: 524: 523: 521: 510: 505: 503: 498: 496: 491: 490: 484: 482: 478: 474: 471: 470:stratigraphic 466: 463: 459: 450: 445: 443: 438: 436: 431: 430: 424: 422: 418: 413: 410: 406: 401: 395: 388: 387: 383: 374: 370: 366: 359: 357: 355: 351: 344: 340: 337: 336: 332: 326: 323: 322:Brussels Sand 319: 315: 311: 308: 305: 302: 300: 297: 295: 294: 290: 289: 285: 282: 280: 277: 275: 272: 269: 266: 263: 262: 259: 257: 252: 246: 241: 239: 237: 233: 229: 225: 221: 218: 214: 209: 207: 203: 199: 195: 191: 187: 183: 179: 175: 171: 167: 166:West Flanders 163: 158: 156: 153: 149: 145: 142: 138: 135:of northwest 134: 130: 126: 125:East Flanders 122: 118: 114: 110: 101: 98: 94: 89: 86: 75: 71: 68: 64: 60: 55: 51: 47: 44: 41: 37: 34: 30: 26: 22: 17: 481:expanding it 467: 421:expanding it 414: 399: 393: 384:Bibliography 372: 368: 324:formations. 298: 291: 278: 273: 254: 210: 159: 108: 106: 91:Type section 375:(3): 66–69. 224:Zenne Group 520:Categories 345:References 299:U. molleni 133:subsurface 65:Northwest 473:formation 314:round ray 270:Location 215:to early 194:sandstone 162:crops out 96:Named for 49:Thickness 31:to early 333:See also 303:Aalter. 293:Urobatis 279:Material 217:Lutetian 213:Ypresian 62:Location 57:Location 33:Lutetian 29:Ypresian 286:Images 267:Species 198:fossils 176:clayey 137:Belgium 131:in the 127:) is a 85:Belgium 73:Country 67:Belgium 551:Aalter 320:& 152:Eocene 141:marine 121:Aalter 100:Aalter 82:  318:Tielt 283:Notes 264:Genus 200:(the 182:humus 155:epoch 113:Dutch 477:stub 417:stub 220:ages 186:peat 184:and 178:sand 148:sand 146:and 144:clay 107:The 39:Type 208:). 123:in 522:: 371:. 367:. 353:^ 312:A 157:. 115:: 27:: 508:e 501:t 494:v 483:. 448:e 441:t 434:v 423:. 373:1 111:(

Index

Stratigraphic range
Ypresian
Lutetian
Geological formation
Belgium
Belgium
Aalter
Dutch
Aalter
East Flanders
geologic formation
subsurface
Belgium
marine
clay
sand
Eocene
epoch
crops out
West Flanders
province of Antwerp
glauconiferous
sand
humus
peat
Aalterbrugge Member
sandstone
fossils
Beernem Member
Oedelem Member

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