Rare earth element enrichment in Palaeoproterozoic Fengzhen carbonatite from the North China block

2016 ◽  
Vol 58 (15) ◽  
pp. 1940-1950 ◽  
Author(s):  
Meng Feng ◽  
Cheng Xu ◽  
Jindrich Kynicky ◽  
Liang Zeng ◽  
Wenlei Song
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
North China ◽  
North China Block ◽  
The North ◽  
Element Enrichment

scholarly journals Primary rare earth element enrichment in carbonatites: Evidence from melt inclusions in Ulgii Khiid carbonatite, Mongolia

2020 ◽  
Vol 117 ◽  
pp. 103294 ◽  
Author(s):  
Meng Feng ◽  
Wenlei Song ◽  
Jindrich Kynicky ◽  
Martin Smith ◽  
Clinten Cox ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Melt Inclusions ◽  
Element Enrichment

scholarly journals Notes on Contributions to the Science of Rare Earth Element Enrichment in Coal and Coal Combustion Byproducts

Minerals ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 32 ◽  
Author(s):  
James Hower ◽  
Evan Granite ◽  
David Mayfield ◽  
Ari Lewis ◽  
Robert Finkelman
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Coal Combustion ◽  
Earth Element ◽  
Element Enrichment

scholarly journals Supplementary material to "Particulate Rare Earth Element behavior in the North Atlantic (GEOVIDE cruise)"

2020 ◽  
Author(s):  
Marion Lagarde ◽  
Nolwenn Lemaitre ◽  
Hélène Planquette ◽  
Mélanie Grenier ◽  
Moustafa Belhadj ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
North Atlantic ◽  
Earth Element ◽  
The North ◽  
Supplementary Material ◽  
The North Atlantic

A rare earth element-rich carbonatite dyke at Bayan Obo, Inner Mongolia, North China

2003 ◽  
Vol 78 (1-2) ◽  
pp. 93-110 ◽  
Author(s):  
X.-M. Yang ◽  
X.-Y. Yang ◽  
Y.-F. Zheng ◽  
M. J. Le Bas
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Inner Mongolia ◽  
Earth Element ◽  
North China ◽  
Bayan Obo

Rare Earth Element Enrichment in Late Archean Manganese Deposits from the Iron Ore Group, East India

2008 ◽  
Vol 58 (4) ◽  
pp. 402-413 ◽  
Author(s):  
Takeru Moriyama ◽  
Mruganka K. Panigrahi ◽  
Dinesh Pandit ◽  
Yasushi Watanabe
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Iron Ore ◽  
Earth Element ◽  
Manganese Deposits ◽  
Element Enrichment

New petrological and geochemical data on mid-Paleozoic island-arc volcanics of northern Sierra Nevada, California: evidence for a continent-based island arc

1989 ◽  
Vol 26 (12) ◽  
pp. 2465-2478 ◽  
Author(s):  
O. Rouer ◽  
H. Lapierre ◽  
C. Coulon ◽  
A. Michard
Keyword(s):  
Rare Earth ◽  
Sierra Nevada ◽  
Rare Earth Element ◽  
Earth Element ◽  
Island Arc ◽  
Geochemical Data ◽  
Light Rare Earth ◽  
Calc Alkaline ◽  
Strong Light ◽  
Element Enrichment

The mid-Paleozoic volcanics of northern Sierra Nevada consist of the Sierra Buttes rhyolites, the Taylor basalts and andesites, and the Keddie Ridge basalt–latite–rhyolite suite. The Sierra Buttes calc-alkaline rhyolites display strong light rare-earth element enrichment and negative εNd values. The Taylor basalts and andesites in the northern Hough and Genesee blocks exhibit calc-alkaline affinities (REE rare-earth element patterns highly enriched in LREE), whereas in the southern Hough block they are tholeiitic (flat rare-earth element patterns). The abundance of silicic lavas, the low εNd values of both the Sierra Buttes and Taylor volcanics and the δ18O values of the Sierra Buttes rhyolite and Bowman Lake trondjhemite provide evidence that the northern Sierra Nevada island arc was continent based. The Keddie Ridge differentiated volcanics, characterized by high Zr, Y, Nb, K, and light rare-earth elements, are geochemically similar to a shoshonite suite. Their eruption at the end of the mid-Paleozoic volcanic episode suggests a reversal of subduction, uplift, and block faulting in the island arc.The mid-Paleozoic volcanics of the northern Sierra Nevada are thought to represent the remnant of a mature island arc because calc-alkaline rocks predominate over tholeiitic ones, the lavas display a K enrichment with time, and the volcanics are evolved in their isotopes, compared with rocks erupted in young or primitive island arcs.

Diopsidites from a Neoproterozoic–Cambrian suture in southern India

2010 ◽  
Vol 147 (5) ◽  
pp. 777-788 ◽  
Author(s):  
M. SANTOSH ◽  
V. J. RAJESH ◽  
T. TSUNOGAE ◽  
S. ARAI
Keyword(s):  
Rare Earth ◽  
Subduction Zone ◽  
Rare Earth Element ◽  
Earth Element ◽  
Suture Zone ◽  
Dharwar Craton ◽  
Southern India ◽  
The North ◽  
Calcic Amphibole ◽  
Gondwana Supercontinent

AbstractWe report the occurrence and characteristics of diopsidite dykes and veins from the Palghat-Cauvery Suture Zone (PCSZ) marking the boundary between the Archaean Dharwar craton to the north and the Proterozoic Madurai Block to the south, which is considered as a trace of the Cambrian Gondwana suture zone in southern India. The diopsidites are composed predominantly of coarse crystals of diopside [Mg no. (100 Mg/(Mg+Fetot)) up to 89] surrounded by retrograde calcic amphibole, plagioclase and phlogopite with accessory titanite and calcite. The major, trace and rare earth element characteristics of the diopside crystals suggest their formation in a subduction zone setting. We correlate the petrogenesis of the diopsidites with the tectonics associated with the subduction and closure of the Neoproterozoic Mozambique Ocean prior to the final collisional assembly of the Gondwana supercontinent in Cambrian.

EVIDENCE OF RARE EARTH ELEMENT ENRICHMENT IN SEDIMENTARY ROCKS FROM PENNSYLVANIA

2016 ◽  
Author(s):  
Tracy L. Bank ◽  
◽  
Elliot Roth ◽  
Bret Howard ◽  
Evan Granite
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Sedimentary Rocks ◽  
Element Enrichment
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