Record Details

Characteristics of Tsunami and paleo Tsunami deposits in South Andaman Island, India

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Characteristics of Tsunami and paleo Tsunami deposits in South Andaman Island, India
 
Creator Sarkar, Debjani
Mukhopadhyay, Anirban
Hazra, Sugata
 
Subject 2004 Tsunami Deposit
Paleo Tsunami Deposit
South Andaman
Grainsize Foraminifera
 
Description 839-848
The 2004 26th December 2004, Tsunami
deposits of were collected by pitting, trenching and coring from Tsunami
affected areas like Collinpur and Wandoor of South Andaman during 2008 and
2010. Individual core and trench sediments were analysed in laboratory for
sedimentology, mineralogy, micro paleontology and organic Carbon content. The
2004 tsunamigenic sediments were found to be black coloured humic mud-fine sand often mixed with shell fragments and/or Coral boulders. At Collinpur,
from sedimentological and micro paleontological signatures, two Paleo Tsunami
horizons are also identified between 107 to 126.4 cm and 47 to 71 cm depths. At
Wandoor, only one Paleo Tsunami deposit can be identified between 35 and 65 cm
depth. Each of these deposits consists of black coloured mud with fine sand and
it resembles the 2004 Tsunami deposit. Presence of dominantly benthic
foraminifera occasionally from depth more than 30 m found at a Paleo Tsunami
horizon at Collinpur, indicates that the Tsunami entrained sediments
from neritic bathymetry. Paleo Tsunami Horizons are correlated with the
Tsunamis events of 1941 and 1881.
 
Date 2013-12-13T12:56:19Z
2013-12-13T12:56:19Z
2013-11
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/24823
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(7) [November 2013]