Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China
An understanding of the processes that control the behavior of major elements with respect to weathering profile is essential to calculate the mobility, redistribution, and mass fluxes of elements. Hence, this study aims to determine the geochemical mass balance, strain, elemental correlation, and t...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/742950 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832551815962427392 |
|---|---|
| author | Sixiang Ling Xiyong Wu Siyuan Zhao Xin Liao Yong Ren Baolong Zhu |
| author_facet | Sixiang Ling Xiyong Wu Siyuan Zhao Xin Liao Yong Ren Baolong Zhu |
| author_sort | Sixiang Ling |
| collection | DOAJ |
| description | An understanding of the processes that control the behavior of major elements with respect to weathering profile is essential to calculate the mobility, redistribution, and mass fluxes of elements. Hence, this study aims to determine the geochemical mass balance, strain, elemental correlation, and transport in weathering profiles. We constructed three weathering profiles for the black shale of Shujingtuo formation. As per the principal component analysis of major elements, density, and pH values, the first component represents the “elemental factor” and the second denotes the “external factor.” The “depletion” pattern is a mass transportation pattern, and Na, K, and Mg are depleted along transect relative to the composition of fresh rock. Fe is redeposited at the bottom half of the saprock zone, whereas Al is accumulated at the regolith zone. The Fe and Al patterns are attributed to the “depletion–addition” and “addition” patterns, respectively. The strain in profiles A and B demonstrates the expansion at the regolith zone and part of the saprock zone. In profile C, however, these zones collapsed at all depths. In chemical weathering, Na, K, Ca, Mg, and Si are depleted in the following order: valley (C) > near mountaintop (B) > ridge (A). |
| format | Article |
| id | doaj-art-7d78be17e7ff4ce5bf070edd9abe2159 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-7d78be17e7ff4ce5bf070edd9abe21592025-02-03T06:00:29ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/742950742950Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, ChinaSixiang Ling0Xiyong Wu1Siyuan Zhao2Xin Liao3Yong Ren4Baolong Zhu5Department of Geological Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaDepartment of Geological Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaDepartment of Geological Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaDepartment of Geological Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaDepartment of Geological Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, ChinaAn understanding of the processes that control the behavior of major elements with respect to weathering profile is essential to calculate the mobility, redistribution, and mass fluxes of elements. Hence, this study aims to determine the geochemical mass balance, strain, elemental correlation, and transport in weathering profiles. We constructed three weathering profiles for the black shale of Shujingtuo formation. As per the principal component analysis of major elements, density, and pH values, the first component represents the “elemental factor” and the second denotes the “external factor.” The “depletion” pattern is a mass transportation pattern, and Na, K, and Mg are depleted along transect relative to the composition of fresh rock. Fe is redeposited at the bottom half of the saprock zone, whereas Al is accumulated at the regolith zone. The Fe and Al patterns are attributed to the “depletion–addition” and “addition” patterns, respectively. The strain in profiles A and B demonstrates the expansion at the regolith zone and part of the saprock zone. In profile C, however, these zones collapsed at all depths. In chemical weathering, Na, K, Ca, Mg, and Si are depleted in the following order: valley (C) > near mountaintop (B) > ridge (A).http://dx.doi.org/10.1155/2014/742950 |
| spellingShingle | Sixiang Ling Xiyong Wu Siyuan Zhao Xin Liao Yong Ren Baolong Zhu Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China The Scientific World Journal |
| title | Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China |
| title_full | Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China |
| title_fullStr | Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China |
| title_full_unstemmed | Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China |
| title_short | Geochemical Mass Balance and Elemental Transport during the Weathering of the Black Shale of Shuijingtuo Formation in Northeast Chongqing, China |
| title_sort | geochemical mass balance and elemental transport during the weathering of the black shale of shuijingtuo formation in northeast chongqing china |
| url | http://dx.doi.org/10.1155/2014/742950 |
| work_keys_str_mv | AT sixiangling geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina AT xiyongwu geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina AT siyuanzhao geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina AT xinliao geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina AT yongren geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina AT baolongzhu geochemicalmassbalanceandelementaltransportduringtheweatheringoftheblackshaleofshuijingtuoformationinnortheastchongqingchina |