Original structures of beaches, bars, and dunes

Original structures of beaches, bars, and dunes
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海滩、酒吧和沙丘的原始结构

DOI:
10.1130/gsab-48-723
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发表时间:
1937
影响因子:
4.9
通讯作者:
W. O. Thompson
W. O. Thompson
中科院分区:
地球科学1区
文献类型:
--
作者:
W. O. Thompson

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引言 概述 本文详细介绍了现代海滩、沙坝和沙丘原始结构的相关事实,并特别强调了它们的层理。文中还试图制定一些标准,用于识别那些没有有机遗迹的古代沙坝、沙丘和层状海滩,这些标准可能会揭示沉积物的成因。一个多世纪以来,众多学者都对这一主题进行了研究,但混乱的局面并没有得到多少改善。希望通过对现代海滩、沙坝和沙丘形成的非常详细的研究,能够找到一种更好的解释这些沉积物的方法。作者在旧金山和圣地亚哥之间的加利福尼亚海岸花费了将近一年的时间,考察了各种沉积物,其中一些是现代海滩,另一些含有指示古代海滩的化石。此外,还对湖泊的海滩和沙坝以及风成沉积物进行了考察……
INTRODUCTION GENERAL STATEMENT This paper presents, in detail, facts about original structures of modern beaches, bars, and dunes, and stresses especially their stratification. It attempts also to formulate criteria for recognition of ancient bars, dunes, and stratified beaches that lack organic remains, which might reveal the origin of the deposits. For more than a century, the subject has been dealt with by numerous writers but little order has been brought out of the confusion. It is hoped that by very detailed studies of the formation of modern beaches, bars, and dunes a better means of interpreting these deposits may be worked out. The writer spent nearly a year along the coast of California, between San Francisco and San Diego, examining various deposits, some of which are modern beaches, and others contain fossils indicative of ancient beaches. In addition, beaches and bars of lakes, as well as eolian deposits, were examined . . .