Age and preservation of Amphistegina (foraminifera) in Hawaiian beach sand: implication for sand turnover rate and resource renewal

TitleAge and preservation of Amphistegina (foraminifera) in Hawaiian beach sand: implication for sand turnover rate and resource renewal
Publication TypeJournal Article
Year of Publication2004
AuthorsResig, JM
JournalMarine Micropaleontology
Volume50
Issue3-4
Pagination225-236
ISSN0377-8398
Abstract

Radiocarbon dating of tests of Amphistegina spp. from the surface sand of Hawaiian beaches has revealed ages up to 1500 years or more. Preservation is related to age: the residual umbos are older than the intact tests. The antiquity of some of the tests suggests that predictions of a sand turnover rate of less than 100 years time based on Amphistegina productivity studies are in error and that the majority of tests produced in nearshore environments of Hawaii do not accumulate on the beach. (C) 2003 Elsevier B.V. All rights reserved.

DOI10.1016/S0377-8398(03)00073-2