"Abnormal" Shore Platforms
"Abnormal" Shore Platforms
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“异常”岸上平台
DOI：
10.1086/623367
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发表时间：
1926
期刊：
影响因子：
--
通讯作者：
J. A. Bartrum
中科院分区：
文献类型：
--
作者：
J. A. Bartrum
新西兰的条件特别有利于海岸线形态的研究，而且，可能是因为这个原因，新西兰地质学家对在岩石退化海岸的高水位附近形成的近水平阶地的频率印象深刻，而且，无论个人对它们的起源有什么看法，经讨论后，本港地质学家明显认为，这种阶地的普遍程度，远较文献所载者所预期的为高。本文旨在简要讨论明显偏离“正常海岸剖面”或“平衡剖面”剖面的海岸平台，为此，本文标题中仅使用“异常”一词。笔者坚信，这些台地在任何方面都不是真正的异常，但它们的特征是可以预期的，因此是海岸线侵蚀的正常产物，并通过信件保证他不是孤立的信念。十年前，作者发表了一篇关于某些岩石平台的简短论文，这些岩石平台是北奥克兰许多港口海岸线地形的突出和典型特征，新西兰群岛湾拉塞尔附近著名的“老帽子”就是一个突出的例子。“与大多数其他北奥克兰港口一样，岛屿湾是由一个被雕刻的陆地淹没而形成的，图一所示的老帽子代表了一个新兴的岛屿。
Conditions in New Zealand are especially favorable to the study of shoreline forms, and, probably for this reason, New Zealand geologists are impressed with the frequency with which subhorizontal benches are developed near high-water level on rocky, retrograded coasts, and, whatever individual beliefs may be held as to their origin, discussions have made it obvious that local geologists are strongly of the opinion that such benches are a far commoner feature than the literature would lead one to expect. The present paper aims at briefly discussing shore platforms which make a distinct departure from the profile which has been described as the "normal shore profile," or the "profile of equilibrium," and for this reason only has the term "abnormal" been applied to them in the title of this paper. The writer firmly believes that such platforms are in no respect truly abnormal, but that characteristically they are expectable, and therefore the normal products of shoreline erosion, and is assured by correspondence that his is no isolated belief. Ten years ago the writer published a brief paper on certain rock platforms which are a prominent and characteristic feature of shoreline topography in many harbors of North Auckland, and of which an outstanding example is afforded by the well-known "Old Hat" near Russell in the Bay of Islands, New Zealand.' As with most other North Auckland harbors, the Bay of Islands has been formed by the submergence of a maturely sculptured land-mass, and the Old Hat, which is illustrated in Figure i, represents an emergent