Diagenesis of sandstones in the back-arc basins of the Western Pacific Ocean

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doi: 10.1002/9781444304459.ch28
Author(s): Lee, Yong Il; Klein, George DeVries
Author Affiliation(s): Primary:
University of Illinois at Urbana-Champaign, Department of Geology, Urbana, IL, United States
University of Liverpool, United Kingdom
Volume Title: Sandstone diagenesis; recent and ancient
Volume Author(s): Burley, Stuart D., editor; Worden, Richard H.
Source: Sandstone diagenesis; recent and ancient, edited by Stuart D. Burley and Richard H. Worden, p.463-487. Publisher: Blackwell Publishing, Oxford, United Kingdom. ISBN: 978-1-444-30445-9
Note: In English. Reprinted from Sedimentology, Vol. 33, p. 651-675, 1986. 70 refs.; illus., incl. 6 tables, geol. sketch map
Summary: Sandstones occur in back-arc basins of the Western Pacific at DSDP sites 299 (Sea of Japan), 297 (northern Shikoku Basin), 445 and 446 (Daito-Ridge-and-Basin Province), 453 (Mariana Trough), 286 (New Hebrides Basin) and 285 (South Fiji Basin). These sandstones are dominantly volcaniclastic arenites derived from andesitic island arcs. The degree of sandstone diagenesis is dependent on original composition, burial rate, heat flow history of the basin, and timing of sandstone deposition with respect to rifting processes and associated high heat flow. Sandstones containing a larger proportion of volcaniclastic components showed more diagenetic effects than sandstones containing a significant volume of other rock fragments and mineral components. Sandstones deposited during early stages of rifting (sites 445, 446) with a slow burial rate and high crustal heat flow showed the greatest degree of downhole diagenetic change. These diagenetic changes include early pore-space reduction and rim cementation by clay minerals followed later by calcite, and subsequent pore-fill cementation by clinoptilolite, heulandite, analcite and later calcite. Replacement of recognizable volcanic rock fragments by chert, calcite and zeolites was observed in the deepest part of the hole. Sandstones deposited after rifting under conditions of associated lower heat flow showed considerably less diagenetic changes, particularly if burial was rapid. The high heat flow associated with earliest rifting, associated fluid circulation driven by thermal convection, and slow burial rate controlled the diagenetic history of these sandstones. Thus, timing of sandstone deposition with rifting stage and associated burial rates were key factors in controlling sandstone diagenesis in back-arc basins. Abstract Copyright (2003), International Association of Sedimentologists.
Year of Publication: 2003
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 06 Petrology, Sedimentary; Arenite; Authigenic minerals; Back-arc basins; Basins; Burial; Cementation; Clastic rocks; DSDP Site 285; DSDP Site 286; DSDP Site 297; DSDP Site 299; DSDP Site 445; DSDP Site 446; DSDP Site 453; Daito Ridge; Deep Sea Drilling Project; Depth; Diagenesis; Electron microscopy data; Electron probe data; Heat flow; IPOD; Island arcs; Japan Sea; Leg 30; Leg 31; Leg 58; Leg 60; Mariana Trough; Nankai Trough; North Pacific; Northwest Pacific; Pacific Ocean; Paragenesis; Petrography; Philippine Sea; Point counts; Rifting; SEM data; Sandstone; Sedimentary rocks; South Pacific; Southwest Pacific; Volcaniclastics; West Pacific; Yamato Basin
Coordinates: N253121 N253122 E1331230 E1331229
S264910 S264909 E1754815 E1754814
N392941 N392942 E1373944 E1373943
N175425 N175426 E1434057 E1434057
Record ID: 2015120332
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom