Rare Earth Elements (REE) Deposits Associated with Great Plain Margin Deposits (Alkaline-Related), Southwestern United States and Eastern Mexico
نویسندگان
چکیده
منابع مشابه
Mineralogy and geochemistry of major, trace and REE elements, Pirashkaft Bauxite Deposits, Mamasani, Fars Province
The Pirashkaft bauxite deposit is located in north of the Paskuhak anticline in the Fars Province. The bauxite deposit present between Sarvak and Gurpy Formations, and formed during the Late Turonian time as a consequent of the Laramid orogeny phase. According to the geological investigations, the Pirashkaft bauxite is Karstic type. The residual ore studied in the Pirashkaft can be classified ...
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The temporal-spatial coincidence of saline deposits with rifting and alkaline magmatism has now become a commonly accepted fact. The congruency of these three phenomena implies logically, their trilateral genetic interrelation. The conventional concept for the formation of saline deposits, i.e an "evaporation process" can not be properly applied to giant saline deposits. The proposed "Volc...
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Carbonatite-associated rare-earth-element (REE) deposits are the most significant source of the world's REEs; however, their genesis remains unclear. Here, we present new Sr-Nd-Pb and C-O isotopic data for Cenozoic carbonatite-hosted giant REE deposits in southwest China. These REE deposits are located along the western margin of the Yangtze Craton that experienced Proterozoic lithospheric accr...
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1989 (T= 3 83, p<<0 001). The numbers of partners in the month before interview also significantly increased from a mean of 2-1 (median 1) to 2-2 (1) (T=2-03, p<OO5). More importantly from the point of view of HIV transmission the mean number of penetrative sexual partners in the previous year rose from 2-2 (median 1) to 2 5 (1) and in the previous month from 0 5 (0) to 0-6 (0), though neither ...
متن کاملModeling Sedimentary Deposits on the Continental Margin
A first objective is to investigate the fabric (pattern) of seabed stratification on continental margins at small time and space scales (1 cm-50 cm depth into the seabed; 1 hr-3 yrs sedimentary record). To this end, we are testing the hypothesis that on muddy shelves such as the northern California shelf, Holocene event stratigraphy consists of the deposits of high-concentration storm regimes a...
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ژورنال
عنوان ژورنال: Resources
سال: 2018
ISSN: 2079-9276
DOI: 10.3390/resources7010008