Results 111 to 120 of about 10,968 (233)

Nomenclature of the amphibole supergroup

, 2012
A new classification and nomenclature scheme for the amphibole-supergroup minerals is described, based on the general formula AB(2)C(5)T(8)O(22)W(2), where A = square, Na, K, Ca, Pb, Li; B = Na, Ca, Mn2+, Fe2+, Mg, Li; C = Mg, Fe2+, Mn2+, Al, Fe3+, Mn3+,
Martin, Robert F., Harlow, George E., Schumacher, John C., Oberti, Roberta, Welch, Mark D., Maresch, Walter V., Hawthorne, Frank C.   +6 more
core   +1 more source

The influence of water on the temperature of amphibole stability in melts

, 2009
The influence of water concentration on the crystallization temperature of amphibole in a melt was analyzed theoretically using the model of an ideal melt. A general-type equation has been derived that can explain the presence of the isobaric temperature
Maksimov A.P.
core   +1 more source

Mineralogical features of amphibole in the Mashhad amphibole-peridotites [PDF]

Iranian Journal of Crystallography and Mineralogy, 2017
kourosh Mohammadiha, mohsen Moazzen, U Altenberger, robab Hajialioghli   +3 more
openaire   +1 more source

Mineral chemistry, petrography and crystallization conditions of the Middle Eocene Kazıkbeli Pluton (Eastern Pontides, NE Türkiye)

Bulletin of the Mineral Research and Exploration
The Eastern Pontides host a diverse suite of plutonic rocks spanning a wide range of ages and compositions. Among these, the Middle Eocene Kazıkbeli pluton, located in the Kürtün districtof Gümüşhane, stands out due to its distinctive petrological ...
Cem Yücel, Emre Aydınçakır, Abdullah Kaygusuz, Zikrullah Samet Güloğlu   +3 more
doaj   +1 more source

Petrology of blueschist facies metamorphic rocks of the Meliata Unit [PDF]

Acta Montanistica Slovaca, 1997
Meliata blueschists originated from basalts, limestones, pelites, psammitic and amphibolite facies basement rocks. Compositionally, the metabasalts have a geochemical signature mostly indicative of a transitional arc-MORB origin, but some mafic rocks ...
Faryad Shah Wali
doaj  

Autoimmun Rev

A growing body of evidence supports an association between systemic autoimmune disease and exposure to amphibole asbestos, a form of asbestos typically with straight, stiff, needle-like fibers that are easily inhaled.

core  

Amphibole ceramics: conceptual development and preliminary experiments [PDF]

, 1985
Certain natural silicate minerals, commonly called jade, are well known for their resistance to brittle fracture. One type of jade, nephrite, is a compacted form of the amphibole mineral series tremolite-actinolite.
Lauf, R.J.
core  

Igneous and shock processes affecting chassignite amphibole evaluated using chlorine/water partitioning and hydrogen isotopes

, 2015
Amphibole in chassignite melt inclusions provides valuable information about the volatile content of the original interstitial magma, but also shock and postshock processes.
Giesting, Paul A., Grady, Monica M., Tindle, Andy G., Monica M. Grady, Schwenzer, Susanne P., Starkey, Natalie A., Treiman, Allan H., Justin Filiberto, Andy G. Tindle, Filiberto, Justin, Ian A. Franchi, Natalie A. Starkey, Paul A. Giesting, Susanne P. Schwenzer, Franchi, Ian A., Allan H. Treiman   +15 more
core   +1 more source

COMPOSITIONAL AND PETROGENETIC FEATURES OF SCHISTOSE ROCKS OF IBADAN AREA, SOUTHWESTERN NIGERIA

Earth Sciences Research Journal, 2009
Amphibole and quartz schist which occur in association with migmatite gneiss, granitic gneiss and Pan African Older Granitebodies around Ibadan area, southwestern Nigeria, were studied with a view to elucidate their compositional characteristics andtheir
Oluwatoke O.O., Adeigbe O.C., Okunlola O.A.   +2 more
doaj  

Early Cretaceous Surtseyan volcanoes of the Baño Nuevo Volcanic Complex (Aysén Basin, Eastern Central Patagonian Cordillera, Chile)

Geologica Acta, 2010
Tens of Surtseyan tuff cones are exposed in the Río Coichel valley, between Ñireguao and Estancia Baño Nuevo (Southern Chilean Andes). The Early Cretaceous products of the submarine eruptions rest on, or are interbedded with, shallow marine sandstones of
A. DEMANT, M. SUÁREZ, R. DE LA CRUZ, O. BRUGUIER   +3 more
doaj