Interpretation of palaeoclimate, relative sea level and scale of stratigraphic correlation through spatio-temporal variations of depositional and diagenetic environments: a case study

Article in Edited Volumes


Publication Details

Author(s): Ramkumar M, Fürsich F, Alberti M
Title edited volumes: Advances in Petroleum Engineering
Publisher: Studium Press
Publishing place: Houston
Publication year: 2014
Pages range: 284-307
Language: English


Abstract


Interpretations of palaeoclimate, relative sea level, depositional and


diagenetic conditions of ancient strata are routine tasks for sedimentologists


and hydrocarbon exploration professionals. In this paper, we present a case


study to demonstrate how affirmatively different scales of stratigraphic


correlation could be attempted based on documentation of spatio-temporal


variations of depositional and diagenetic environments. The Dhosa Oolite


Member of the Chari Formation of the Kachchh Basin, western India,


deposited under Oxfordian eustatic sea-level rise, is known for its ooid


content, hardground surfaces and faunal composition. Based on these traits


and facies characteristics, traditionally it is correlated with global oolite


peak, documented in Madagascar and many European Jurassic sections


located at France, England, Poland, etc. In the Kachchh mainland, this


member shows extensive development of iron crusts, well cemented cap rock


and reworked fauna, recognizable for over 100 kilometers in its strike


direction due to which it is considered to be a regional marker that could


facilitate stratigraphic correlation not only in the Kachchh basin, but also


with coeval strata of the adjacently located Jaisalmer Basin. Statistical


analyses of geochemical and petrographic data of the Upper Callovian-


Oxfordian strata of the Kachchh Basin, western India, in which the Dhosa Oolite Member is also a part, revealed that there are spatio-temporal


variations of depositional and diagenetic characteristics observable in terms of


unique variations in petrographic, mineralogical and geochemical compositions


between and within different stratigraphic units and sections under study.


Distinct palaeoclimatic and environmental conditions prevalent during the


deposition of Dhosa Oolite Member, in terms of rise in sea-level, absence of


chemical weathering in the source area, cessation of siliciclastic influx might


have promoted enhanced carbonate and ooid production and preservation. While


this distinct nature of DOM, as observable in lithological as well as geochemical


characteristics offer an unique potential to correlate the strata with coeval


deposits elsewhere, occurrences of omission surfaces, recycling events and spatio-


temporal variations of diagenetic intensity, suggest that caution has to be


exercised while correlating this member with coeval strata located elsewhere.


FAU Authors / FAU Editors

Fürsich, Franz Prof. Dr.
Naturwissenschaftliche Fakultät


External institutions with authors

Christian-Albrechts-Universität zu Kiel
Periyar University


How to cite

APA:
Ramkumar, M., Fürsich, F., & Alberti, M. (2014). Interpretation of palaeoclimate, relative sea level and scale of stratigraphic correlation through spatio-temporal variations of depositional and diagenetic environments: a case study. In Advances in Petroleum Engineering. (pp. 284-307). Houston: Studium Press.

MLA:
Ramkumar, Muthuvairavasamy, Franz Fürsich, and Matthias Alberti. "Interpretation of palaeoclimate, relative sea level and scale of stratigraphic correlation through spatio-temporal variations of depositional and diagenetic environments: a case study." Advances in Petroleum Engineering. Houston: Studium Press, 2014. 284-307.

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Last updated on 2019-22-07 at 07:28