View
Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Miller, David J.; Mitchell, Simon F.
Author Affiliation, Ana.
Department of Geography and Geology
Article Title
Palaeokarstic surfaces in the upper cretaceous limestones of central Jamaica
Medium Designator
n/a
Connective Phrase
n/a
Journal Title
Cretaceous research
Translated Title
n/a
Reprint Status
Refereed
Date of Publication
2003
Volume ID
24
Issue ID
n/a
Page(s)
119-128
Language
n/a
Connective Phrase
n/a
Location/URL
http:; www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-48V7X73-5&_user=822131&_handle=V-WA-A-W-AA-MsSAYZA-UUW-U-AACCEEZWEB-AACBCDDUEB-ABZZAYYB-AA-U&_fmt=summary&_coverDate=04%2F30%2F2003&_rdoc=4&_orig=browse&_srch=%23toc%236755%232003%23999759997%23441054!&_cdi=6755&view=c&_acct=C000044530&_version=1&_urlVersion=0&_userid=822131&md5=4a194c89c971b056c80e5a6091473327....
read more
ISSN
n/a
Notes
n/a
Abstract
Two prominient pitted surfaces in rhythmic, late maastrichtian, rudist-bearing limestones in central Jamaica are described. The lower surface is pock-marked with small pits that form a nodular, mamillated surface. The pits are roughly circular to gently elliptical in plan view. They vary in diameter from 5-170 mm and in depth from 5-90 mm, and are oriented perpendicular to bedding. This surface is buried beneath a lignite-rich siltstone bed. The upper surface contains microkarren phenomena represented by small cylindrical potholes up to 40 mm in diameter and 30 mm deep. These surfaces are interpreted as palaeokarstic because the pits are: (1) perpendicular to bedding and not the present land surface; (2) infilled with very poorly sorted siltstone, and (3) overlain by lignitic shales indicating terrestrial influx. The presence of two palaeokarstic surfaces in late maastrichtian limestones suggest short-period cycles in relative sea level, consistent with glacial-eustatic driving mechanisms.....
read more