NDLI: Budgeting postglacial sedimentation history on the Santa Cruz, California mid-continental shelf

Content Provider	IEEE Xplore Digital Library
Author	Grossman, E.E. Eittreim, S.L. Hanes, D.M. Field, M.E. Edwards, B.D. Fallon, S.J. Anima, R.J.
Copyright Year	2003
Description	Author affiliation: Coastal & Marine Geol., US Geol. Survey, Santa Cruz, CA, USA (Grossman, E.E.; Eittreim, S.L.; Hanes, D.M.; Field, M.E.; Edwards, B.D.)
Abstract	High-resolution seismic reflection profiling and surface texture mapping of the central California continental shelf, reveal a prominent subsurface reflector interpreted as a low stand erosion surface and an overlying mudbelt that covers 421 km/sup 2/ of the midshelf in depths of 40-90 m. Radiometric and sedimentologic analyses of samples from vibracores taken along the seaward edge of the mudbelt show that initial deposition above the preHolocene erosion surface began ca. 14.5 ka. These data and model results of sea-level history, tectonics, and the Monterey Bay littoral sediment budget support the notion that the entire midshelf deposit was formed during the postglacial transgression. An alternative explanation, that <30% of the deposit is Holocene, requires that (1) sediment input is overestimated and/or loss is greatly underestimated, and (2) preservation on the shelf was significant despite deep and active wave scour observed in the form of rapid cliff and bedrock cutting early and late in the transgression. The difference between a basal age of /spl sim/14.5 ka and residence time of midshelf sediment (3,273 years), derived from dividing mudbelt volume by modern accumulation rate, implies: (1) significant sediment loss occurred since the mudbelt formed and/or (2) sediment accumulation has varied greatly over tune. Although modern sediment budgets are relatively well constrained, it remains uncertain how well we can apply them to the past. An evolving model of sedimentation history explores the likelihood of changes in sediment supply, accumulation patterns, and depositional patterns owing to postglacial sea-level history and human land-use activities while providing important boundary conditions for modeling shoreface evolution.
Sponsorship	Dept. of the Navy Sci. and Technol. Coalition for Enhanced Marine Resources Orincon Ceros Harbour Offshore Inc
Starting Page	1214
Ending Page	1218
File Size	405355
Page Count	5
File Format	PDF
ISBN	0933957300
DOI	10.1109/OCEANS.2003.178023
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Sediments Sea measurements History Geology Sea surface Reflection Surface texture Humans Evolution (biology) Radiometry
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Forward modeling of paleo heat flow: a case study of Kristin Field, Mid-Norwegian continental shelf

Geochemical evaluation of sea surface sediments along the continental shelf, south east coast of India

Current And Suspended Sediment Measurements On The Central California Continental Shelf

Marine Geology, South Texas Outer Continental Shelf: A Processes Approach

Near-Bed Currents and Sediment Transport on the Inner Scotian Shelf During CASP

Petroleum - derived authigenic carbonates of the Louisiana continental slope

Delivery to and presence of domoic acid in the surface sediments of the Santa Cruz Municipal Wharf, Santa Cruz, California, USA

Distribution and contamination of trace metals in surface sediments of the East China Sea

Summer surface circulation on the Gascoyne continental shelf

Budgeting postglacial sedimentation history on the Santa Cruz, California mid-continental shelf

Similar Documents

Forward modeling of paleo heat flow: a case study of Kristin Field, Mid-Norwegian continental shelf

Geochemical evaluation of sea surface sediments along the continental shelf, south east coast of India

Current And Suspended Sediment Measurements On The Central California Continental Shelf

Marine Geology, South Texas Outer Continental Shelf: A Processes Approach

Near-Bed Currents and Sediment Transport on the Inner Scotian Shelf During CASP

Petroleum - derived authigenic carbonates of the Louisiana continental slope

Delivery to and presence of domoic acid in the surface sediments of the Santa Cruz Municipal Wharf, Santa Cruz, California, USA

Distribution and contamination of trace metals in surface sediments of the East China Sea

Summer surface circulation on the Gascoyne continental shelf

Budgeting postglacial sedimentation history on the Santa Cruz, California mid-continental shelf