Results 181 to 190 of about 151,236 (376)

Research in volcanic geology, petrology and planetary science at MIT, 1969 to 1974 [PDF]

open access: yes
The behavior of volcanoes was studied by geologic mapping, petrologic investigations of lava and xenoliths, physical measurements, and theoretical modelling. Field observations were conducted in Alaska (Nunivak Island), Iceland, Hawaii (Mauna Kea), Italy
Mcgetchin, T. R.
core   +1 more source

A database for igneous rocks of the Newfoundland Appalachians. [PDF]

open access: yesSci Data
Wang C   +6 more
europepmc   +1 more source

Rock Sample Geochemistry, Petrology, and Isotopic Analyses Supporting Geochronological and Thermochronological Modelling

open access: green
Maddalena Perrini   +9 more
openalex   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis   +5 more
wiley   +1 more source

Forensic gemmological investigation based on optical and crystal-chemical changes in topaz from Ouro Preto and Caraí, Brazil, induced by heat treatment. [PDF]

open access: yesSci Rep
Fridrichová J   +8 more
europepmc   +1 more source

An archean suture zone in the Tobacco Root Mountains? (1984) Evolution of Archean Continental Crust, SW Montana (1985) [PDF]

open access: yes
The Lake Plateau area of the Beartooth Mountains, Montana were mapped and geochemically sampled. The allochthonous nature of the Stillwater Complex was interpreted as a Cordilleran-style continental margin.
Kain, L., Mogk, D. W.
core   +1 more source

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