U-PB AGES OF LA-ICP-MS ZIRCON FROM LATE CRETACEOUS TUFF IN THE SALIN DEPRESSION OF MYANMAR AND THEIR GEOLOGICAL SIGNIFICANCE

HUANG Yuxiao; ZHANG Xunhua; HUANG Qiyu; GUO Xingwei; SUN Jianwei

doi:10.16028/j.1009-2722.2018.08006

2018 Vol. 34, No. 8

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Article navigation > Marine Geology Frontiers > 2018 > 34(8): 45-54

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HUANG Yuxiao, ZHANG Xunhua, HUANG Qiyu, GUO Xingwei, SUN Jianwei. U-PB AGES OF LA-ICP-MS ZIRCON FROM LATE CRETACEOUS TUFF IN THE SALIN DEPRESSION OF MYANMAR AND THEIR GEOLOGICAL SIGNIFICANCE[J]. Marine Geology Frontiers, 2018, 34(8): 45-54. doi: 10.16028/j.1009-2722.2018.08006

Citation:

HUANG Yuxiao, ZHANG Xunhua, HUANG Qiyu, GUO Xingwei, SUN Jianwei. U-PB AGES OF LA-ICP-MS ZIRCON FROM LATE CRETACEOUS TUFF IN THE SALIN DEPRESSION OF MYANMAR AND THEIR GEOLOGICAL SIGNIFICANCE[J]. Marine Geology Frontiers, 2018, 34(8): 45-54. doi: 10.16028/j.1009-2722.2018.08006

U-PB AGES OF LA-ICP-MS ZIRCON FROM LATE CRETACEOUS TUFF IN THE SALIN DEPRESSION OF MYANMAR AND THEIR GEOLOGICAL SIGNIFICANCE

1.
Shandong University of Science and Technology, Qingdao 266590, China
2.
Qingdao Institute of Marine Geology, CGS, Qingdao 266071, China
3.
Qingdao Marine Science and Technology National Laboratory Marine Mineral ResourceEvaluation and Detection Technology Function Laboratory, Qingdao 266235, China
4.
Nanjing Geological Survey Center, CGS, Nanjing 210016, China
5.
Tongji University, Shanghai 200092, China

More Information

Corresponding author: ZHANG Xunhua, xunhuazh@vip.sina.com

Received Date: 02 May 2018

Publish Date: 28 August 2018

Abstract

Abstract

Tuff, as a direct product of volcanic activity, is often found along the edge of the plate. Accurate geochronological dating for the tuff formations in the Salin Depression of the pre-Arc Basin in the north-central part of Myanmar may found a reliable basis for stratigraphic division and calibration of the study area. The tectonic movement between blocks, supplemented by geochemical data, may provide time constraints for delineations of tectonic settings. Our data suggest that: 1) The ages of zircons in tuffs are 70±1.0 Ma, 64.2±1.2 Ma, 65±1.0 Ma, and 64±0.8 Ma., indicating that the Pangji Formation is Late Cretaceous in age. 2) The B-type subduction of the Neo-Tethys Ocean led to magmatic activity in the Central Basin of Myanmar. Tuff deposits derived are deposited in the Salin Depression.
- Late Cretaceous /
- tuff /
- zircon /
- LA-ICP-MS /
- Burma

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References

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