A reconnaissance on the use of the speleothems in Korean limestone caves to retrospective study on the regional climate change for the recent and geologic past SCIE SCOPUS KCI

Cited 9 time in WEB OF SCIENCE Cited 8 time in Scopus
Title
A reconnaissance on the use of the speleothems in Korean limestone caves to retrospective study on the regional climate change for the recent and geologic past
Author(s)
Woo, KS; Hong, GH; Choi, DW; Jo, KN; Baskaran, M; Lee, HM
KIOST Author(s)
Lee, Hyunmi(이현미)
Publication Year
2005-09
Abstract
More than 1,000 limestone caves are extensively developed in Gangwon-do and Chungeheongbuk-do, Korea. A variety of numerous speleothems are actively growing in these caves today. A potential to use speleothems as regional paleoclimate proxy was explored by analyzing soda straw, stalactite an stalagmite. These proxy recorders that have grown during the past several decades were investigated using the presence of excess Pb-210. Most specimens collected from six limestone caves were found to have an excess Pb-210, indicating that they are less than about 100 yrs old. This excess Pb-210 was employed to estimate the growth rate for a tubular "soda straw" that yielded a longitudinal growth rate of 1.7 mm/yr past 60 years. Coeval decrease in delta(13)C values of the soda straw, spanning the time period of about 1930-1995 AD, may reflect the carbon isotope ratio of atmospheric CO2 for the same period. Studies on fine scale variations in the isotopic composition of recent speleothems along with age control using Pb-210 excess method from the speleothems in Korean limestone caves promise a great potential for the reconstruction of climate and environmental changes during the past hundred years or so.
ISSN
1226-4806
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5033
DOI
10.1007/BF02910584
Bibliographic Citation
GEOSCIENCES JOURNAL, v.9, no.3, pp.243 - 247, 2005
Publisher
HANRIMWON PUBLISHING COMPANY
Subject
ATMOSPHERIC CO2; SEDIMENT; CARBON; PB-210
Keywords
limestone cave; soda straw; stalactite; stalagmite; proxy; excess Pb-210; atmospheric CO2
Type
Article
Language
English
Document Type
Article
Publisher
HANRIMWON PUBLISHING COMPANY
Related Researcher
Research Interests

marine environmental,environmental radioactivity,해양환경,환경방사능

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