Sedimentary and geochemical characteristics of Triassic new type of polyhalite potassium resources in Northeast Sichuan and its genetic study.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
11 08 2020
11 08 2020
Historique:
received:
07
11
2019
accepted:
14
04
2020
entrez:
13
8
2020
pubmed:
13
8
2020
medline:
13
8
2020
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 32782296
doi: 10.1038/s41598-020-69063-2
pii: 10.1038/s41598-020-69063-2
pmc: PMC7419550
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
13528Références
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