Record Details

Occurrence of faecal pellet-filled simple and composite burrows in cold seep carbonates: A glimpse of a complex benthic ecosystem

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Occurrence of faecal pellet-filled simple and composite burrows in cold seep carbonates: A glimpse of a complex benthic ecosystem
 
Creator Mazumdar, A.
Joshi, R.K.
Peketi, A.
Kocherla, M.
 
Subject carbonate sediments
burrowing organisms
trace fossils
animal fossils
 
Description Ichnofossils preserved in marine sedimentary records provide unique information on various activities (feeding, dwelling, excretion etc.) of benthic organisms. Here we report faecal pellet-filled tubular (simple and composite) burrow casts from cold seep carbonate layers (16–18 mbsf) deposited at least 46–58 kyr ago in the Krishna–Godavari basin, Bay of Bengal, India. Deposition of these chemosynthetic clam bearing authigenic carbonate sediments with highly depleted carbon stable isotope ratios indicates methane expulsion that resulted in the development of a cold seep ecosystem. Although cold seep communities are extensively reported from the rock record and modern seep sites, hardly any information is available on burrowing activity of the seep biota. Our findings open up a window for future investigation of the ecological significance of such burrows.
 
Date 2011-12-08T07:36:02Z
2011-12-08T07:36:02Z
2011
 
Type Journal Article
 
Identifier Marine Geology, vol.289; 2011; 117–121
no
http://drs.nio.org/drs/handle/2264/3962
 
Language en
 
Relation Mar_Geol_289_117.jpg
 
Rights An edited version of this paper was published by Elsevier. Copyright [2011] Elsevier
 
Publisher Elsevier