Study on distribution of shallow water sediments and volcanic rocks on deep sea floor in relation to sealevel changes

Author(s): Hanada, Masaaki
Author Affiliation(s): Primary:
Tokai University, Shimizu, Japan
Volume Title: Journal of the Faculty of Marine Science and Technology, Tokai University
Source: Journal of the Faculty of Marine Science and Technology, Tokai University, Vol.45, p.137-166. Publisher: Tokai University, College of Marine Science and Technology, Tokyo, Japan. ISSN: 0375-3271 CODEN: JCMSBQ
Note: In Japanese with English summary. 130 refs.; illus., incl. 8 tables, sketch maps
Summary: Results of Deep Sea Drilling Project (DSDP) from abyssal floors shows wide-spread distributions of shallow water sediments and volcanic detritus erupted within shallow environment. These sediments were mostly found on top of topographic highs such as on top of the seamounts and ridges which are believed to be sunken feature after succession of volcanic activities and/or formation of shallow marine facies. No clear relation is found between age of formation, distribution depth, and distance from mid-ocean ridge systems. Formation age not evenly dispersed throughout geological time rather restricted in certain geological eras. Most of these sediments were found in Cretaceous, Miocene, and Eocene sediments in descending order. The observed result that increase distribution depths of such sediments along with increasing ages implies step-by-step sealevel rise through geologic time.
Year of Publication: 1998
Research Program: DSDP Deep Sea Drilling Project
Key Words: 06 Petrology, Sedimentary; 12 Stratigraphy, Historical Geology and Paleoecology; Cenozoic; Deep Sea Drilling Project; Deep-sea environment; Distribution; Igneous rocks; Lithostratigraphy; Marine environment; Mesozoic; Sea-level changes; Sediments; Shallow-water environment; Spatial distribution; Upper Mesozoic; Volcanic rocks; World ocean
Record ID: 1998052575
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute.

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