Depositional patterns constrained by slope topography changes on seamounts
Depositional patterns constrained by slope topography changes on seamounts
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DOI：
10.1038/s41598-020-77573-2
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Xuefa Shi
中科院分区：
文献类型：
--
作者：
Dewen Du;ShijuanYan;GangYang;Fengdeng Shi;Zhiwei Zhu;Qinglei Song;FengliYang;Yingchun Cui;Xuefa Shi
Slope topography is known to control the spatial distribution of deposits on intraplate seamounts; .however, relatively little is known about how slope topography changes constrain those depositional .patterns. In this study, we analyse data on four lithotypes found on seamount slopes, including .colloidal chemical deposits comprising mainly cobalt-rich crusts, and examine the relationships .between the spatial distribution of these lithotypes and current slope topography. We use these .relationships to discuss depositional patterns constrained by slope topography changes. Some .depositional units in drill core samples are interpreted to have resulted from past topographic changes .that created the current slope topography. Two or more types of deposits that accumulated at the .same location implies that the slope topography changed over time and that the depositional patterns .on seamount slopes are constrained by changes in slope topography
