Results 101 to 110 of about 1,350 (208)

Petrology, geochemistry and mineralization of Tertiary volcanic rocks associated with subvolcanic intrusive bodies, with special reference to age dating and origin of granites from Arghash – Ghasem-Abad area, NE Iran

open access: yesJournal of Economic Geology, 2013
Arghash – Ghasem-Abad area in NE Iran is located in the rim of the Sabzevar structural zone. Tertiary outcrops include granite and quartz monzodiorite porphyry associated with dacite and andesite volcanic rocks.
Zahra Alaminia   +3 more
doaj  

Assessment of Intact Rock Parameters and Their Conditional Upscaling to the Rock Mass Scale

open access: yesSci
Lithological, metasomatic, and structural heterogeneity in ore-hosting rocks limits the reliability of applying a single set of mechanical parameters without domain subdivision.
Din-Mukhammed Shabaz   +6 more
doaj   +1 more source

Transient electromagnetic characteristics of coal seams intruded by magmatic rocks. [PDF]

open access: yesPLoS One, 2022
Yang Y   +5 more
europepmc   +1 more source

Cetylpyridinium Bromide/Polyvinyl Chloride for Substantially Efficient Capture of Rare Earth Elements from Chloride Solution. [PDF]

open access: yesPolymers (Basel), 2022
Allam EM   +8 more
europepmc   +1 more source

Lamprophyres of the Peshchernoe gold deposit, their geological position, material composition, and metasomatic alterations (Northern Urals)

open access: yesЗаписки Горного института
The article presents the first data on biotite-hornblende lamprophyres discovered at the Peshchernoe gold deposit. We consider the geological position of lamprophyre dikes in the deposit structure and the relationship of these rocks with tectonically ...
Dmitrii V. Kuznetsov   +3 more
doaj  

Infrared spectra of iron-rich chamosite and chrysotile

open access: yes, 1964
Iron-rich chrysotile and chamosite samples occur In a lamprophyre dike near Ely, Minnesota. These minerals were investigated with the use of an infrared spectrometer. The spectra of these samples were compared to previously published spectra.
Comella, Joseph Robert
core   +1 more source

Home - About - Disclaimer - Privacy