UPPER EOCENE IMPACTITES OF THE US EAST-COAST - DEPOSITIONAL ORIGINS, BIOSTRATIGRAPHIC FRAMEWORK, AND CORRELATION

被引：42

作者：

POAG, CW ^{[1
]}

AUBRY, MP ^{[1
]}

机构：

[1] CNRS,GEOL QUATERNAIRE LAB,F-13288 MARSEILLE,FRANCE

来源：

PALAIOS | 1995年 / 10卷 / 01期

关键词：

D O I：

10.2307/3515005

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Similar successions of planktonic foraminifera, calcareous nannofossils, and bolboformids document coeval deposition of the Exmore impact breccia (Virginia Coastal Plain) and art impact ejecta layer at DSDP Site 612 (New Jersey Continental Slope). Both impactites accumulated in the late Eocene during the early part of biochrons P15 (planktonic foraminifera) and NP 19-20 (calcareous nanofossils), approximately 35.5-35.2 Ma. The impactite at Site 612 is part of an allochthonous debriite, 22.8 cm thick, displaced from the Toms Canyon impact crater, 40 km north-northwest of Site 612. The Exmore breccia, possibly 2000 m thick, is composed of debris displaced from the Chesapeake Bay impact crater, located in southeastern Virginia, 330 km southwest of Site 612.

引用

页码：16 / 43

页数：28

共 68 条

[1]

Aubry M.-P., 1992, Proceedings of the Ocean Drilling Program Scientific Results, V120, P471, DOI 10.2973/odp.proc.sr.120.149.1992

[2]

Aubry Marie-Pierre, 1992, P272

[3] PALEOGENE CALCAREOUS NANNOPLANKTON BIOSTRATIGRAPHY OF NORTHWESTERN EUROPE [J].

AUBRY, MP .

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 1986, 55 (2-4) :267-334

[4]

AUBRY MP, 1983, BIOSTRATIGRAPHIE PAL, V89

[5]

Backmann J., 1987, Abhandlungen der Geologischen Bundesanstalt (Vienna), V39, P21

[6]

Berggren W.A., 1985, GEOL SOC LONDON MEM, V10, P141, DOI DOI 10.1144/GSL.MEM.1985.010.01.15

[7] PALEOGENE TROPICAL PLANKTONIC FORAMINIFERAL BIOSTRATIGRAPHY AND MAGNETOBIOCHRONOLOGY [J].

BERGGREN, WA ;

MILLER, KG .

MICROPALEONTOLOGY, 1988, 34 (04) :362-380

[8]

BERGGREN WA, 1984, INITIAL REPORTS DEEP, V72, P939

[9]

BERGGREN WA, 1992, EOCENE OLIGOCENE CLI, P29

[10]

BOHOR BF, 1988, UNPUB 19TH LUN PLAN, P114

← 1 2 3 4 5 6 7 →