Results 81 to 90 of about 2,908 (168)

Measurement report: Ice nucleation ability of perthite feldspar powder [PDF]

Atmospheric Chemistry and Physics
Feldspars are among the most efficient mineral ice-nucleating particles (INPs) in the atmosphere, yet their ice nucleation behavior varies widely across natural samples.
J. Canet, J. Canet, L. Rodríguez, G. Renzer, P. Alfonso, M. Bonn, K. Meister, K. Meister, M. Garcia-Valles, A. Verdaguer   +9 more
doaj   +1 more source

Characterization of Red Sandstone and Black Crust to Analyze Air Pollution Impacts on a Cultural Heritage Building: Red Fort, Delhi, India

Heritage
Urban air pollution poses significant risks to cultural heritage buildings, particularly in polluted megacities like Delhi, India. The Red Fort, a UNESCO World Heritage Site and a symbol of India’s rich history, is highly susceptible to degradation ...
Gaurav Kumar, Lucia Rusin, Pavan Kumar Nagar, Sanjay Kumar Manjul, Michele Back, Alvise Benedetti, Bhola Ram Gurjar, Chandra Shekhar Prasad Ojha, Mukesh Sharma, Eleonora Balliana   +9 more
doaj   +1 more source

DISTRIBUIÇÃO DE METAIS PESADOS NOS SEDIMENTOS DE FUNDO DOS RIOS CACERIBU E GUAXINDIBA, AFLUENTES DA BAÍA DE GUANABARA – RIO DE JANEIRO, BRASIL [PDF]

Geochimica Brasiliensis, 2015
The Caceribu e Guaxindiba Rivers are two important tributaries of Guanabara Bay – RJ. Both are included in two protection environmental area and they are passive from sources and intense differences.
Liliane Jucá Lemos da Silva Porto, Cícera Neysi de Almeida, Márcia Walquiria de Carvalho Dezotti, José Augusto Martins Corrêa, Kelson do Carmo Freitas Faial, Kleber Raimundo Freitas Faial   +5 more
doaj  

Mineral and structural features of jewelery wood tin

Известия высших учебных заведений: Геология и разведка, 2017
A mineral composition and gemological descriptions of the jewelery varieties of the wood tin of deposits Dzhalindinskoe (Khabarovskiy krai), Tynooken (East Chukotka) and Dominion Krik (Canada) have been explored.
D. A. Petrochenkov
doaj   +1 more source

Geology of Langhovde, Lutzow-Holm Bay, East Antarctica

Antarctic Record, 1974
The rocks exposed in Langhovde, Liitzow-Holm Bay, East Antarctica, are chiefly metamorphic and granitic, with less extensive glacial deposits and beach sediments. Metamorphic rocks consist of metabasite, pyroxene gneiss, hornblende gneiss, garnet-biotite
Terumi ISHIKAWA
doaj   +1 more source

On the crystallization conditions of the Neoproterozoic, high-K calc-alkaline, Bragança Paulista-type magmatism, southern Brasília Orogen, SE Brazil

Brazilian Journal of Geology
: Syn-orogenic Neoproterozoic granitic magmatism (ca. 630-600 Ma) in southern Brasília Orogen includes large batholiths of compositionally expanded high-K calc-alkaline granites (lato sensu) and small occurrences constituted by anatetic leuco-granites ...
Andrés Fabián Salazar-Naranjo, Silvio Roberto Farias Vlach   +1 more
doaj   +1 more source

Microcline (thin section)

, 2009
Key Characteristics: The mineral's low relief, lack of color and tartan twinning are characteristic. In plagioclase feldspar polysynthetic twinning in two directions can mimic microcline's tartan twinning.

core  

Mineralogy and heavy minerals recovery of stream sediments on the Jos Plateau, northcentral Nigeria: implications for mineralization

Discover Geoscience
This study focuses on mineralogy and heavy minerals recovery of stream sediments on the Jos Plateau, northcentral Nigeria and Implications for Mineralization.
Shola C. Odewumi
doaj   +1 more source

Nanoscopic feldspar islands on K-feldspar microcline (001)

Dickbreder T, Sabath F, Schneider F, Güth U, Bechstein R, Kühnle A. Nanoscopic feldspar islands on K-feldspar microcline (001). Physical Chemistry, Chemical Physics .
Schneider, Florian, Sabath, Franziska, Dickbreder, Tobias ; https://orcid.org/, Kühnle, Angelika, Bechstein, Ralf, Güth, Uwe   +5 more
core   +1 more source

Microcline var. amazonite

Photographed by Ron Wolf.Milky light blue amazonite (variety of microcline), Lake George intrusive center, near Woodland Park, Teller County ...
Wolf, Ron
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