Results 161 to 170 of about 5,424 (219)
Unveiling the Subterranean Symphony: A Comprehensive Study of Cave Fungi Revealed Through National Center for Biotechnology Sequences. [PDF]
J Fungi (Basel)Savković Ž, Popović S, Stupar M.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
CARBONATITES AND CARBONATITES AND CARBONATITES
The Canadian Mineralogist, 2005Le clan des carbonatites est ici redefini dans le contexte d'une classification mineralogique et genetique, et subdivise en deux groupes: carbonatites primaires et residus carbothermaux. On souligne le fait que "carbonatite" est a la fois un terme petrographique applicable a un type de roche particulier, et un terme faisant reference a un groupe de ...
openaire +1 more source
An Introduction to Carbonatites and Carbonatite Complexes
2018The Alno igneous complex intruded local migmatites and granite country-rocks of Svecofennian age at ~580 Ma and produced a suite of early alkaline silicate intrusives (e.g., ijolites, nepheline syenites) and dykes (e.g., trachytes, phonolites) and later a suite of carbonatite sheet intrusions for which Alno is widely known.
Peter Kresten, Valentin R. Troll
openaire +1 more source
Mineralogical Magazine, 1981
AbstractNormal carbonatite magmas are characteristically associated with ijolites and produce extensive fenitization by alkali metasomatism, commonly feldspathization or phlogopitization. The sequence of carbonatites developed from this magma are characterized by igneous isotopic ratios, high contents of incompatible elements, their distinctive pattern
openaire +1 more source
AbstractNormal carbonatite magmas are characteristically associated with ijolites and produce extensive fenitization by alkali metasomatism, commonly feldspathization or phlogopitization. The sequence of carbonatites developed from this magma are characterized by igneous isotopic ratios, high contents of incompatible elements, their distinctive pattern
openaire +1 more source
Nature, 1957
IN 1952 1 one of us described specimens of syenitic and carbonate rocks collected in northern Kivu, near the south-western termination of the Lake Edward Rift, by Borgniez, in 1938 2. The junior author has recently had the opportunity of revisiting the locality and has established the carbonatitic nature of the carbonate rocks.
P. DE BÉTHUNE, A. MEYER
openaire +1 more source
IN 1952 1 one of us described specimens of syenitic and carbonate rocks collected in northern Kivu, near the south-western termination of the Lake Edward Rift, by Borgniez, in 1938 2. The junior author has recently had the opportunity of revisiting the locality and has established the carbonatitic nature of the carbonate rocks.
P. DE BÉTHUNE, A. MEYER
openaire +1 more source
Properties of Carbonatite Magma and Processes in Carbonatite Magma Chambers
The Journal of Geology, 1983The physical and thermal properties of carbonatite magmas are estimated by analogy with alkali carbonate melts, which are ionic liquids, composed of discrete, unpolymerized ions. Carbonatite magmas are estimated to have low viscosity (on the order of 5 × 10-2 poise), low heat of fusion (175 J/gm), and large thermal diffusivity (4 × 10-3 J/cm-sec-K ...
Allan H. Treiman, Andrew Schedl
openaire +1 more source
Mineralogical Magazine, 2000
The tenth Carbonatite Workshop was held at University College London on 19th February 1999. This workshop was unusual in being partly thematic, with a special presentation of research on the newly discovered Italian carbonatites. The following eight papers are representative of the material presented, with the similar bias towards the important Italian
openaire +1 more source
The tenth Carbonatite Workshop was held at University College London on 19th February 1999. This workshop was unusual in being partly thematic, with a special presentation of research on the newly discovered Italian carbonatites. The following eight papers are representative of the material presented, with the similar bias towards the important Italian
openaire +1 more source
Carbonatite differentiation processes
International Geology Review, 1982(1982). Carbonatite differentiation processes. International Geology Review: Vol. 24, No. 9, pp. 1079-1089.
openaire +1 more source
Bayan Obo Carbonatites: Texture Evidence from Polyphase Intrusive and Extrusive Carbonatites
Acta Geologica Sinica - English Edition, 2010Abstract:Most of the so‐called Bayan Obo fine‐grained dolomite marbles collected from the main and east orebodies show a microporphyritic texture, namely the microphenocrysts are set in a very finegrained matrix, although nearly all of them have undergone recrystallization caused either by deformation or alteration.
WANG Kaiyi +4 more
openaire +1 more source