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请教高手帮忙翻译一段(最好是懂点地质学的)

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/09/18 15:27:32
请教高手帮忙翻译一段(最好是懂点地质学的)
Benthic microbial mats: a possible major component of organic mattera ccumulation in the Lower Aptian oceanic anoxic event
ABSTRACT
Oceanic anoxic events (OAEs) throughout the Cretaceous were periods of high organic carbon burial leading to drawdown of atmospheric carbon dioxide and lowering of bottom-water
oxygen concentration,thereby enhancing the preservation of organic matter(OM).Two dynamic depositional models have been proposed for these events in the Tethyan domain:one is
based on strong thermohaline strati?cation and low surface productivity,the other on high surface productivity with
intensi?ed deep-water circulation.Here,we propose another explanation for the concentration of OM,derived essentially
from microscopical observations (scanning electron microscope and transmission electron microscope) in the organic-richest
interval of an Early Aptian OAE in central Italy (OAE1a or Selli level,116Ma).This high-resolution microscopical study of OM
highlights benthic microbial mats as the possible source of organic-rich samples where amorphous OM is the major organic
constituent. These mats could be more common in OAE black shales than previously thought.(如果有好的翻译软件或是地质同行的,希望能联系一下943346086)
海底生物垫:很可能是阿普地阶(据查是白垩纪的第五阶段)时期海洋缺氧事件有机生物聚集的主要产物
摘要
海洋缺氧事件贯穿整个白垩纪时期,当时大量的有机碳被燃烧掉导致大气层的二氧化碳大量增加而水底部氧气聚集,因此提高了有机物的保存.在古地中海地区由以下两种动力学的沉积条件:一是基于很强的缓化合物盐的阳离子和低处表面很强的化合生产能力,另一个是高处丰富的循环流动的水的有效能力.从显微镜观察(扫描式电子显微镜和变速式电子显微镜)意大利中部阿普地阶早期海洋缺氧事件时的有机物丰富的区域的结果,我们得到有机生物聚集的另一种证明.高分辨率的显微镜对有机生物的研究把注意力集中在把海底微生物垫作为富含有机物的标本,这样的样本是以无形的微生物做为主要的有机生物构成.这样的垫层在海洋缺氧事件的黑色岩层中比原先想的要普遍.
不够专业,不是学地质的.