Results 111 to 120 of about 388,584 (268)

Geophysical consequences of phanerozoic and Archean crustal evolution: Evidence from crustal cross-sections [PDF]

open access: yes
Geophysical properties of continental crust depend on the nature of crustal evolution. This is well illustrated by examination of two crustal cross-sections (1), the combined Ivrea-Verbano zone (IVZ) and Strona-Ceneri zone (SCZ) of northern Italy and the
Fountain, D. M.
core   +1 more source

Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin forearcs: evidence from Leg 125 fluids and serpentinites

open access: yes, 1992
Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indicating that low-temperature seawater-peridotite ...
Parkinson, I. J.   +2 more
core   +1 more source

Flora [PDF]

open access: yes, 2011
The invaluable commented checklist of the vascular flora of the ultramafic rocks of northeastern Portugal of Pinto da Silva (1970) has been recently reviewed by Aguiar and Monteiro-Henriques (ined.).
Aguiar, Carlos   +3 more
core  

Engineered carbon mineralization in ultramafic rocks for CO2 removal from air: Review and new insights

open access: yes, 2020
P. Kelemen   +5 more
semanticscholar   +1 more source

The ultramafic belts [PDF]

open access: yes, 1969
One petrological approach to upper mantle studies is to determine which ultramafic rocks represent mantle material. Ultramafic rocks occur in a variety of field and petrographic associations: in recent reviews, Wyllie [1967b, 1968] outlined eleven ...
Wyllie, Peter J.
core  

Xenoliths in the alkali basalts of Makhtesh Ramon of Desert Negev (Israel) as indicators of mantle metasomatosis and magma generation

open access: yesЛитосфера, 2016
Xenoliths in the Early Cretaceous alkali basalts of Makhtesh Ramon basin (southern Israel) are represented by essentially olivine rocks: dunite (usually including clinopyroxen) - 5% of the total amount, lherzolite - 21%, wehrlite - 28%, clinopyroxenite -
G. B. Fershtater   +2 more
doaj   +2 more sources

Granitic rocks and metasediments in Archean crust, Rainy Lake area, Ontario: ND isotope evidence for mantle-like SM/ND sources [PDF]

open access: yes
Granitoids, felsic volcanic rocks and clastic metasediments are typical rocks in Archean granite-greenstone belts that could have formed from preexisting continentasl crust.
Hanson, G. N., Shirey, S. B.
core   +1 more source

The Pikwitonei granulite domain: A lower crustal level along the Churchill-Superior boundary in central Manitoba [PDF]

open access: yes
The greenschist to amphibolite facies tonalite-greenstone terrain of the Gods Lake subprovince grades - in a northwesterly direction - into the granulite facies Pikwitonei domain at the western margins of the Superior Province.
Weber, W.
core   +1 more source

Geological questions and significant results provided by early ERTS-1 data [PDF]

open access: yes
There are no author-identified significant results in this report. The organization for evaluating the uses of Earth Resources Technology Satellite data of the United States and foreign areas is described.
Carter, W. D.
core   +1 more source

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