2023
DOI: 10.1021/acsomega.3c01496
|View full text |Cite
|
Sign up to set email alerts
|

Element Geochemical Characteristics and Geological Significance of Mudstones from the Middle Jurassic Shaximiao Formation in Sichuan Basin, Southwest China

Abstract: Thick sequences of terrestrial multicolored mudstones of the Middle Jurassic Shaximiao Formation in the Sichuan Basin, Southwest China, effectively recorded paleoclimate and paleoenvironment changes. The paleoenvironment of the Shaximiao Formation is reconstructed by using detailed sedimentological and elemental geochemical analysis of the multicolored mudstones. The provenance, paleoclimate, paleosalinity, and paleoredox conditions are distinguished by using the discriminant indicators of CIA, C-value, Sr/Cu,… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
3
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
5

Relationship

0
5

Authors

Journals

citations
Cited by 5 publications
(3 citation statements)
references
References 73 publications
0
3
0
Order By: Relevance
“…If the corrected mole number of CaO is less than that of NaO, then the corrected CaO mole number is used; otherwise, the Na 2 O mole number is used [54]. High CIA values (85~100) in sediments indicate intense humid and hot climatic conditions; medium values (70~85) suggest warm and moist climatic conditions, while lower values (50~70) represent cold and dry climatic conditions [55]. In general, the CIA values exhibit an increasing trend (from 54.03 to 79.60, avg.…”
Section: Paleoclimate Conditionsmentioning
confidence: 99%
See 2 more Smart Citations
“…If the corrected mole number of CaO is less than that of NaO, then the corrected CaO mole number is used; otherwise, the Na 2 O mole number is used [54]. High CIA values (85~100) in sediments indicate intense humid and hot climatic conditions; medium values (70~85) suggest warm and moist climatic conditions, while lower values (50~70) represent cold and dry climatic conditions [55]. In general, the CIA values exhibit an increasing trend (from 54.03 to 79.60, avg.…”
Section: Paleoclimate Conditionsmentioning
confidence: 99%
“…72.24) (Figure 9), suggesting a gradual transition from cold and arid to warm and moist conditions in the Es3l to Es4u paleoclimate, resulting in the heightened chemical weathering of rocks. However, the CIA cannot be the sole proxy of climatic change due to its susceptibility to various other factors, such as sediment provenance and depositional conditions [55]. Hence, it is necessary to perform a comprehensive analysis combining other geological and climatic proxies.…”
Section: Paleoclimate Conditionsmentioning
confidence: 99%
See 1 more Smart Citation