LATE TRIASSIC FLUVIAL AND MARINE SHELF SUCCESSION, QUEBRADA-DONA-INES-CHICA, ATACAMA REGION, NORTHERN CHILE

被引：2

作者：

BELL, CM ^{[1
]}

SUAREZ, M ^{[1
]}

机构：

[1] CHELTENHAM & GLOUCESTER COLL HIGHER EDUC,DEPT GEOG & GEOL,CHELTENHAM GL50 3PP,GLOS,ENGLAND

来源：

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES | 1991年 / 4卷 / 04期

关键词：

D O I：

10.1016/0895-9811(91)90002-3

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A 400-meter-thick volcanic and fine-grained clastic sedimentary succession in Quebrada Dona Ines Chica (26-degrees-07'S latitude; 69-degrees-20'W longitude) provides a record of Late Triassic deposition in the Atacama region of northern Chile. The strata are conformably overlain by fossiliferous marine limestones and sandstones of Late Triassic to Early Jurassic (Sinemurian) age which contain the oldest ichthyosaur remains known from Central and South America. The clastic succession is interpreted as coastal fluvial deposits, with the overlying limestones representing shelf deposits.

引用

页码：287 / 293

页数：7