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Carapace Nunatak

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at its base. About 140 m (460 ft) above its base, a 15 m (49 ft) thick layer of volcanic breccia lies sandwiched between basaltic lava flows. The lava flows exhibit
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The lake cherts from the upper part of Carapace Sandstone contain an abundance of fusainized plant material and animal remains. This fine-grained
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The Mawson Diamictite and the Carapace Sandstone, formations of the Ferrar Group at Allan Hills and Carapace Nunatak, Victoria Land, Antarctica.
107:, which consists of about 430 m (1,410 ft) of the Ferrar Group. The exact thickness is unknown because the strata is broken up by 496: 341: 355: 475:
Cheirolepidiaceous diversity: an anatomically preserved pollen cone from the Lower Jurassic of southern Victoria Land, Antarctica.
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The “Preservation Paradox”: microbes as a key to exceptional fossil preservation in the Kirkpatrick Basalt (Jurassic), Antarctica.
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Additional field interpretation of the Jurassic sequence at Carapace Nunatak and Coombs Hills, south Victoria Land Antarctica.
204:) of fossiliferous, laminated siltstone and chert. The upper surface of the Kirkpatrick Basalt has been long since removed by 329: 304:. Intermixed with the plant fossils are numerous of shallow-water conchostracans and other ephemeral freshwater crustaceans. 224:, the fossils found at Carapace Nunatak are remarkably well preserved to the extent that their source is referred to as a 346: 200:
and, at the base of the Kirkpatrick Basalt, contain with very large (up to 2 m (6.6 ft) thick) xenoliths (
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The fossiliferous horizons of the Ferrar Group at Carapace Nunatak contain one of the richest and most diverse
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Jurassic paleobiota known from Antarctica. Not only are these fossils diverse, except for poorly preserved
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Conformably overlying the Carapace Sandstone is 300 m (980 ft) of Kirkpatrick Basalt. The basalt
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At the base of Carapace Nunatak, about 130 m (430 ft) of cross-bedded sandstones and fine lithic
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Early jurassic miospores from ferrar group of carapace nunatak, south victoria Land, Antarctica.
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Hieger, T.J., Serbet, R., Harper, C.J., Taylor, T.N., Taylor, E.L. and Gulbranson, E.L., 2015.
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represented by vegetative and reproductive structures, isolated ovules, a diversity of taxa of
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Babcock, L.E., Leslie, S.A., Elliot, D.H., Stigall, A.L., Ford, L.A. and Briggs, D.E., 2006.
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where it is visible for a considerable distance from many directions. It was so named by the
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2nd ed. Jefferson, North Carolina and London, McFarland & Company, Inc. 1771 pp.
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Jurassic conchostracans from Carapace Nunatak, southern Victoria Land, Antarctica.
260: 177:. The base of the Carapace Sandstone is not exposed. The Carapace Nunatak is the 108: 225: 232: 221: 58: 490: 278:
preserves abundant plant fossils. These plant fossils include at least three
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debris. The uppermost 25 m (82 ft) contains beds of laminated and
268: 252: 235:, fine-grained lake deposits of Carapace Sandstone, fossil conchostracans ( 66: 275: 248: 236: 193: 70: 217: 85: 244: 240: 185: 170: 146: 256: 166: 158: 101: 81: 297: 279: 205: 189: 142: 126: 115: 112: 97: 54: 293: 150: 134: 130: 104: 78: 301: 282: 174: 286: 264: 138: 65:, standing 8 nautical miles (15 km) southwest of 418: 416: 414: 376: 374: 372: 411: 369: 488: 467: 397: 395: 393: 133:fraction of the fine conglomerates consists of 437: 435: 406:New Zealand Journal of Geology and Geophysics 385:New Zealand Journal of Geology and Geophysics 390: 432: 314: 451: 380:Ballance, P.F. and Watters, W.A., 1971. 356:United States Department of the Interior 118:conceal the underlying Jurassic strata. 188:include a thick layer of hyaloclastite 75:Commonwealth Trans-Antarctic Expedition 489: 243:. They are most typical of ephemeral, 478:Review of Palaeobotany and Palynology 446:Review of Palaeobotany and Palynology 96:The Carapace Nunatak is an erosional 57:, the most westerly near the head of 497:Paleontological sites of Antarctica 347:Geographic Names Information System 334: 13: 14: 513: 352:United States Geological Survey 1: 307: 322:Antarctica: An Encyclopedia, 181:for the Carapace Sandstone. 88:found in the exposed rocks. 7: 77:(1956–1958) because of the 10: 518: 211: 125:of the Carapace Sandstone 91: 53:) is a prominent isolated 253:notostracan branchiopods 502:Nunataks of Oates Land 427:The Sedimentary Record 401:Bradshaw, M.A., 1987. 271:are extremely rare. 231:In the laminated, and 16:Nunatak in Antarctica 448:, 144(1-2), pp.3-12. 387:, 14(3), pp.512-527. 457:Yabin, Shen, 1994. 441:Ribecai, C., 2007. 320:Stewart, J., 2011. 302:cycadophyte foliage 37: /  408:, 30(1), pp.37-49. 342:"Carapace Nunatak" 41:76.883°S 159.400°E 462:Antarctic Science 330:978-0-7864-3590-6 276:Magadi-type chert 198:columnar jointing 111:and discontinous 509: 481: 480:, 220, pp.78-87. 471: 465: 464:, 6, pp.105–113. 455: 449: 439: 430: 420: 409: 399: 388: 378: 367: 366: 364: 362: 338: 332: 318: 149:, and weathered 52: 51: 49: 48: 47: 46:-76.883; 159.400 42: 38: 35: 34: 33: 30: 20:Carapace Nunatak 517: 516: 512: 511: 510: 508: 507: 506: 487: 486: 485: 484: 472: 468: 456: 452: 440: 433: 429:, 4(4), pp.4-8. 421: 412: 400: 391: 379: 370: 360: 358: 340: 339: 335: 319: 315: 310: 263:and wings, and 214: 94: 45: 43: 39: 36: 31: 28: 26: 24: 23: 17: 12: 11: 5: 515: 505: 504: 499: 483: 482: 466: 450: 431: 410: 389: 368: 333: 312: 311: 309: 306: 267:. Macroscopic 245:alkaline ponds 222:petrified wood 213: 210: 93: 90: 59:Mackay Glacier 15: 9: 6: 4: 3: 2: 514: 503: 500: 498: 495: 494: 492: 479: 476: 470: 463: 460: 454: 447: 444: 438: 436: 428: 425: 419: 417: 415: 407: 404: 398: 396: 394: 386: 383: 377: 375: 373: 357: 353: 349: 348: 343: 337: 331: 327: 323: 317: 313: 305: 303: 299: 295: 291: 288: 284: 281: 277: 272: 270: 269:trace fossils 266: 262: 261:insect nymphs 258: 254: 250: 247:. Associated 246: 242: 238: 234: 229: 227: 223: 219: 209: 207: 203: 199: 195: 192:with beds of 191: 187: 182: 180: 179:type locality 176: 172: 168: 164: 163:fossiliferous 160: 156: 152: 148: 144: 140: 136: 132: 128: 124: 123:conglomerates 119: 117: 114: 110: 106: 103: 99: 89: 87: 83: 80: 76: 73:party of the 72: 68: 64: 63:Victoria Land 60: 56: 50: 21: 477: 474: 469: 461: 458: 453: 445: 442: 426: 423: 405: 402: 384: 381: 359:. Retrieved 345: 336: 321: 316: 273: 265:plant leaves 249:macrofossils 230: 226:Lagerstätten 215: 201: 183: 120: 95: 67:Mount Brooke 19: 18: 237:clam shrimp 194:pillow lava 86:crustaceans 71:New Zealand 44: / 491:Categories 361:17 October 308:References 257:ostracodes 241:arthropods 233:silicified 218:freshwater 186:lava flows 171:siltstone 147:greywacke 84:of small 82:carapaces 298:rhizomes 294:rachides 290:pinnules 251:include 167:mudstone 165:beds of 159:volcanic 157:contain 127:outcrops 116:moraines 102:Jurassic 32:159°24′E 280:conifer 212:Fossils 206:erosion 190:breccia 153:. Some 143:granite 135:pebbles 113:glacial 98:outlier 92:Geology 55:nunatak 29:76°53′S 328:  300:, and 173:, and 151:basalt 131:gravel 129:. The 109:faults 105:strata 79:fossil 202:rafts 175:chert 363:2023 326:ISBN 296:and 287:fern 283:taxa 155:beds 139:coal 137:of 100:of 61:in 493:: 434:^ 413:^ 392:^ 371:^ 354:, 350:. 344:. 292:, 259:, 255:, 228:. 208:. 169:, 145:, 141:, 365:. 22:(

Index

76°53′S 159°24′E / 76.883°S 159.400°E / -76.883; 159.400
nunatak
Mackay Glacier
Victoria Land
Mount Brooke
New Zealand
Commonwealth Trans-Antarctic Expedition
fossil
carapaces
crustaceans
outlier
Jurassic
strata
faults
glacial
moraines
conglomerates
outcrops
gravel
pebbles
coal
granite
greywacke
basalt
beds
volcanic
fossiliferous
mudstone
siltstone
chert

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