Stable Carbon Isotope Stratigraphy of the Cambrian Machari Formation in the Yeongweol Area, Gangweon Province, Korea

被引:9
作者
Chung, Gong Soo [1 ]
Lee, Jeong Gu [2 ]
Lee, Kwang Sik [3 ]
机构
[1] Chungnam Natl Univ, Dept Geol & Earth Environm Sci, Daejeon 305764, South Korea
[2] Gwacheon Natl Sci Museum, Exhibit Planning & Coordinat Div, Gwacheon 427060, Gyeonggi, South Korea
[3] Korea Basic Sci Inst, Div Earth & Environm Sci, Ochang 363883, Chungbuk, South Korea
来源
JOURNAL OF THE KOREAN EARTH SCIENCE SOCIETY | 2011年 / 32卷 / 05期
关键词
SPICE; Machari Formation; carbonate ramp; sequence stratigraphy;
D O I
10.5467/JKESS.2011.32.5.437
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The Steptoean Positive Carbon Isotope Excursion (SPICE) is found in the Machari Formation which was interpreted to have been deposited on the middle to outer carbonate ramp environment. The Machari Formation is the Middle to Late Cambrian in age and distributed in the Yeongweol area, Gangweon Province, Korea. The SPICE event in the Machari Formation begins with the first appearance datum of trilobite Glyptagnostus reticulatus and ends with the first appearance of datum of trilobite Irvingella. The SPICE is found in approximately 120 m thick sequence and delta C-13 values in the SPICE interval range from 0.6 to 4.4 parts per thousand. The SPICE in the Machari Formation is interpreted to be caused by burial of organic matter in the sea floor and subsequent increase of C-13 isotope of the Late Cambrian ocean. The SPICE interval in the Machari Formation corresponds to the highstand to transgressive systems tracts.
引用
收藏
页码:437 / 452
页数:16
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