Sökning: WFRF:(Ray Sumit)
> (2021) >
Modern analogue to ...
-
Ray, Sumit KumarDepartment of Geology, Presidency University, Kolkata, India
(författare)
Modern analogue to past coseismic ground uplift in North Andaman, India
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
-
Elsevier,2021
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:oru-93190
-
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-93190URI
-
https://doi.org/10.1016/j.catena.2021.105471DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
Funding Agencies:Department of Science & Technology (India)Department of Science & Technology (DOST), Philippines Honorary Scientist Scheme (2015-2018) of the National Academy of Sciences India Department of Science & Technology (India) DST/INT/JSPS/P-232/2016Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science 18KK0096
-
Dynamics of surface geological processes, triggered by coseismic ground uplift following the 2004 Sumatra-Andaman earthquake (M-w > 9.2), provide a modern analogue for assessing the paleoseismic significance of an enigmatic subsurface peat occurrence within beach sands in the western coast of North Andaman Island. The megathrust earthquake uplifted vast stretches of coastal intertidal zones to supratidal levels. As a result, intertidal flora, including mangroves, desiccated and perished. Mass mortality of the flora continued even three years after the earthquake and generated a large volume of forest debris. Coastal waves pushed the debris to the high tide line where the accumulated debris would be gradually buried, and would subsequently transform into linear peat bodies keeping a record of the seismic event in 2004. Accordingly, we have interpreted a linear strand-parallel peat occurrence in beach sand as a record of earlier mass mortality of plants likely associated with a coseismic ground uplift. Stable isotope studies indicate that local intertidal flora is the source of the peat organic matter. Moreover, the 1817 CE calibrated mean AMS radiocarbon age of the peat suggests recurrence of a megathrust earthquake in the Andaman subduction zone about 200 years ago.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Das, Supriyo KumarDepartment of Geology, Presidency University, Kolkata, India
(författare)
-
Chatterjee, SubhamDepartment of Geology, Presidency University, Kolkata, India
(författare)
-
Patel, Priyank PravinDepartment of Geography, Presidency University, Kolkata, India
(författare)
-
Ekblad, Alf,1957-Örebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)afed
(författare)
-
Yoshida, KohkiDepartment of Geology, Faculty of Science, Shinshu University, Matsumoto, Nagano, Japan
(författare)
-
Department of Geology, Presidency University, Kolkata, IndiaDepartment of Geography, Presidency University, Kolkata, India
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Catena (Cremlingen. Print): Elsevier2050341-81621872-6887
Internetlänk
Hitta via bibliotek
Till lärosätets databas