Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/56301
Title: Correlation and high-resolution timing for Paleo-tethys Permian-Triassic boundary exposures in Vietnam and Slovenia using geochemical, geophysical and biostratigra-phyc data sets
Authors: Luu, Thi Phuong Lan
Brooks B., Ellwood
Jonathan H., Tomkin
Galina P., Nestell
Merlynd K., Nestell
Kenneth T., Ratcliffe
Herry, Rowe
Dang, Tran Huyen
Nguyen, Thanh Dung
Nguyen, Chien Thang
Nguyen, Ha Thanh
Dao, Van Quyen
Keywords: Permain-Triassic boundary
Vietnam
Slovenia
Time-series analysis
Black Carbon
Magnetostratigraphy susceptibility
Hindeodus parvus
Issue Date: 2018
Series/Report no.: Vietnam Journal of Earth Sciences;No.03, Vol.40 .- P.253–270
Abstract: Two Permian-Triassic boundary (PTB) successions, Lung Cam in Vietnam, and Lukač in Slovenia, have been sampled for high-resolution magnetic susceptibility, stable isotope and elmental chemistry, and biostratigraphic analyses. These successions are located on the eastern (Lung Cam section) and western margins (Lukač section) of the Paleo-Tethys Ocean during PTB time. Lung Cam, lying along the eastern margin of the Paleo-Tethys Ocean pro-vides an excellent proxy for correlation back to the GSSP and out to other Paleo-Tethyan successions. This proxy is tested herein by correlating the Lung Camsectionin Vietnam to the Lukačsection in Slovenia, which was deposited along the western margin of the Paleo-Tethys Ocean during the PTB interval. It is shown herein that both the Lung Cam and Lukač sections can be correlated andexhibit similar characteristics through the PTB interval. Using time­series analysis of magnetic susceptibility data, high-resolution ages are obtained for both successions, thus allowing relative ages, relative tothe PTB age at ~252 Ma, to be assigned. Evaluation of climate variability along the western and eastern margins of the Paleo-Tethys Ocean through the PTB interval, using δ18Ovalues indicates generally cooler climate in the west, below the PTB, changing to generally warmer climates above the boundary. Aunique Black Car­bon layer (elemental carbon present by agglutinated foraminifers in their test) below the boundary exhibits colder temperatures in the eastern and warmer temperatures in the western Paleo-Tethys Ocean.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/56301
ISSN: 0866-7187
Appears in Collections:Vietnam journal of Earth sciences

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