Low level determination of the rare earth elements in rocks and minerals by inductively coupled plasma mass spectrometryDIRECT SEEDINGSEED PRIMINGOCALA SAND PINEPINUS-CLAUSAThe technique of Fourier transform infrared (FTIR) spectroscopy, in conjunction with new methods of sample presentation, has been ...
Rare-Earth distributions in some rocks and associated minerals of the batholith of southern California 来自 Semantic Scholar 喜欢 0 阅读量: 32 作者:DG Towell,JW Winchester,RV Spirn 摘要: The rare-earth and yttrium abundances in four whole-rock samples and eight associated mineral fractions from...
uranyl silicate mineralsNb-Ta mineralsuraniniteAbu Rushied pegmatiteSouth Eastern DesertEgyptThe Abu Rushied area, situated in the South Eastern Desert of Egypt is a distinctive occurrence of economically important rare-metal mineralization where the host rocks are represented by granitic gneisses. ...
doi:10.1080/00357529.1962.11766273RowleyElmer B.Taylor & FrancisRocks & MineralsRowley, E, B., 1962, Rare-earth pegmatite discovered in Adirondack Mountain area, Essex County, New York: Rocks and Minerals, v. 37, p. 341-347, 453-460....
Blue is a rare color for rocks and minerals. When was the last time you found a rock with a vivid blue color? Have you ever found one in nature? When a blue rock - especially one capable of serving as a gem material - is found it immediately has a market. Sodalite is one of the...
Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geo... Tantalum, an important metal for high-technology applications, is recovered from oxide minerals that are present as minor constituents in rare...
18-01-2023 07:00 Minerals are special rocks. People use them to make things. A Swedish government company finds many minerals. They are in the north of
SYDNEY, Oct. 17 (Xinhua) -- Geologists in Western Australia have discovered one of world's rarest minerals hidden away inside a 300 million-year-old meteorite crater. Known as reidite, it's the first time the material has been found in Australia and only the 6th time in history it's ...
Our study shows high abundances of hornblende and apatite in the El Vizcaino dune sands, suggesting a dominance of granodiorites/intermediate plutonic rocks and marine authigenic phosphorite in the dune sands. There is a relationship between unstable heavy minerals like hornblende, pyroxenes, and ...
During granulite-facies metamorphism of metasedimentary rocks by the infiltration of carbonic fluids, the disappearance of hydrated minerals leads to the liberation of aqueous fluids. These fluids are strongly enriched in F and Cl, and a series of Large-Ion-Lithophile (LIL) elements and rare metal...