Knowledge

Whitchurch Sand Formation

Source πŸ“

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Radley, Jonathan D.; Allen, Percival (April 2012). "The marginal Wealden (non-marine Lower Cretaceous) between Wiltshire and Buckinghamshire, England".
460: 424: 455: 417: 276: 450: 251: 299:. The lithology largely consists of unconsolidated fine-medium grained sand with isolated bodies of 405: 397: 144: 130: 264: 106: 8: 363: 320: 355: 296: 359: 280: 228: 401: 218: 444: 367: 272: 116: 63: 26: 394: 292: 284: 232: 38: 32: 83: 48: 288: 236: 185: 181: 167: 88: 303:
cemented sandstone, with localised beds of siltstone and mudstone.
300: 177: 78: 73: 58: 53: 43: 268: 93: 68: 200: 386: 126: 442: 425: 345: 432: 418: 348:Proceedings of the Geologists' Association 461:United Kingdom geologic formation stubs 443: 381: 13: 14: 472: 385: 211: 36: 325:BGS Lexicon of Named Rock Units 456:Geologic formations of England 393:This article about a specific 339: 313: 1: 306: 404:. You can help Knowledge by 360:10.1016/j.pgeola.2011.11.004 154:up to 20 metres (70 ft) 7: 400:in the United Kingdom is a 327:. British Geological Survey 321:"Whitchurch Sand Formation" 252:Whitchurch, Buckinghamshire 10: 477: 380: 291:. It was deposited in the 261:Whitchurch Sand Formation 247: 242: 224: 206: 196: 191: 173: 163: 158: 150: 136: 122: 112: 102: 25: 21:Whitchurch Sand Formation 20: 275:, it is preserved as an 131:Lower Greensand Group 265:geological formation 107:Geological formation 141:Haddenham Formation 27:Stratigraphic range 451:Cretaceous England 413: 412: 257: 256: 468: 434: 427: 420: 389: 382: 372: 371: 343: 337: 336: 334: 332: 317: 297:Early Cretaceous 217: 215: 214: 98: 35: 18: 17: 476: 475: 471: 470: 469: 467: 466: 465: 441: 440: 439: 438: 378: 376: 375: 344: 340: 330: 328: 319: 318: 314: 309: 281:Buckinghamshire 229:Buckinghamshire 212: 210: 97: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 41: 31: 30: 12: 11: 5: 474: 464: 463: 458: 453: 437: 436: 429: 422: 414: 411: 410: 390: 374: 373: 354:(2): 374–381. 338: 311: 310: 308: 305: 271:. part of the 255: 254: 249: 245: 244: 240: 239: 226: 222: 221: 208: 204: 203: 198: 194: 193: 189: 188: 175: 171: 170: 165: 161: 160: 156: 155: 152: 148: 147: 145:Portland Group 138: 134: 133: 124: 120: 119: 114: 110: 109: 104: 100: 99: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 42: 37: 23: 22: 9: 6: 4: 3: 2: 473: 462: 459: 457: 454: 452: 449: 448: 446: 435: 430: 428: 423: 421: 416: 415: 409: 407: 403: 399: 396: 395:stratigraphic 391: 388: 384: 383: 379: 369: 365: 361: 357: 353: 349: 342: 326: 322: 316: 312: 304: 302: 298: 295:stage of the 294: 290: 286: 282: 278: 274: 273:Wealden Group 270: 266: 262: 253: 250: 246: 241: 238: 234: 230: 227: 223: 220: 209: 205: 202: 199: 195: 190: 187: 183: 179: 176: 172: 169: 166: 162: 157: 153: 149: 146: 142: 139: 135: 132: 128: 125: 121: 118: 117:Wealden Group 115: 111: 108: 105: 101: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 45: 40: 34: 28: 24: 19: 16: 406:expanding it 392: 377: 351: 347: 341: 329:. Retrieved 324: 315: 279:in hills in 260: 258: 243:Type section 15: 293:Valanginian 285:Oxfordshire 233:Oxfordshire 33:Valanginian 445:Categories 307:References 398:formation 368:0016-7878 289:Wiltshire 248:Named for 237:Wiltshire 186:Ironstone 182:Siltstone 168:Sandstone 159:Lithology 151:Thickness 123:Underlies 331:7 August 301:limonite 192:Location 178:Mudstone 137:Overlies 269:England 207:Country 164:Primary 113:Unit of 366:  277:inlier 225:Extent 216:  201:Europe 197:Region 267:, in 263:is a 174:Other 127:Gault 402:stub 364:ISSN 333:2018 287:and 259:The 103:Type 39:Preκž’ 356:doi 352:123 447:: 362:. 350:. 323:. 283:, 235:, 231:, 219:UK 184:, 180:, 143:, 129:, 89:Pg 29:: 433:e 426:t 419:v 408:. 370:. 358:: 335:. 94:N 84:K 79:J 74:T 69:P 64:C 59:D 54:S 49:O 44:κž’

Index

Stratigraphic range
Valanginian
Preκž’
κž’
O
S
D
C
P
T
J
K
Pg
N
Geological formation
Wealden Group
Gault
Lower Greensand Group
Haddenham Formation
Portland Group
Sandstone
Mudstone
Siltstone
Ironstone
Europe
UK
Buckinghamshire
Oxfordshire
Wiltshire
Whitchurch, Buckinghamshire

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