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Sedimentary and geochemical characteristics of Triassic new type of polyhalite potassium resources in Northeast Sichuan and its genetic study
- Source :
- Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020), Scientific Reports
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- Polyhalite has been discovered for years in the Triassic of the Sichuan Basin. However, it is difficult to exploit and utilize such polyhalite because of its deep burial depth and its coexistence with anhydrite or dolomite. Therefore, it has always been regarded as “dead ore”. Based on slice identification, X-powder diffraction, chemical analysis, REEs analysis and strontium isotope test on halite samples from the fourth and fifth member of Jialingjiang Formation to Leikoupo Formation of Wells ZK601 and ZK001 in Xuanhan area, Northeast Sichuan Basin, this paper discovers thick layers of granular polyhalite associated with halite and the polyhalite content accounts for 10–30%. These deep polyhalites can be obtained by water-soluble mining and utilized, so they are called “new type polyhalite potash deposits”. The deposit is deep buried at 3,000 m underground, and the thickness of a single layer can be more than 30 m. It is stable in regional distribution. The discovery of the “new type polyhalite potash deposits” has “activated” polyhalite, which has been considered as deep “dead ore” and has great significance for potash prospecting in China.
- Subjects :
- 0301 basic medicine
Solid Earth sciences
Dolomite
Geochemistry
lcsh:Medicine
engineering.material
Article
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
Prospecting
lcsh:Science
Multidisciplinary
Anhydrite
Polyhalite
lcsh:R
Potash
Isotopes of strontium
Chemistry
030104 developmental biology
chemistry
engineering
Halite
lcsh:Q
Sedimentary rock
030217 neurology & neurosurgery
Geology
Subjects
Details
- ISSN :
- 20452322
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....c6d8337609439355d041a192f6fd2502