Results 101 to 110 of about 8,675 (209)

Mineralised ultramafic rocks in South Greenland

Rapport Grønlands Geologiske Undersøgelse, 1971
In 1960 several mineralised ultramafic boulders with a remarkable content of Pt were found by M. Loretan in the neighbourhood of Sarqa fjord in the Nanortalik district, South Greenland. This stimulated interest in a closer examination of the mafic and ultramafic rocks of South Greenland and in 1962 and 1963 J. P.
openaire   +2 more sources

Precambrian Meta-Ultramafic Rocks from the Tobacco Root Mountains, Montana

, 2004
Meta-ultramafic rocks occur as small (2 to 100 m long), podiform bodies in all three major Precambrian rock suites of the Tobacco Root Mountains of southwest Montana. Most samples consist of a randomly oriented, coarse-grained assemblage of orthopyroxene,
Chris J. Poulsen, Rebecca B. Thomas, Johnson, Kathleen E., Thomas, Rebecca B., Brady, John B., William A. MacFarlane, M. Jennifer Sincock, Poulsen, Chris J., John B. Brady, MacFarlane, William A., Sincock, M. Jennifer, Kathleen E. Johnson   +11 more
core   +1 more source

RRS Charles Darwin Cruise 167, 23 Nov - 21 Dec 2004. Sub-seafloor physical properties at Saldanha Seamount, Mid-Atlantic Ridge, and controls on the spatial distribution of hydrothermal venting [PDF]

, 2006
Charles Darwin 167 (CD167) was a joint research project carried out by UK and Portuguese scientists from the National Oceanography Centre, Southampton, the University of Durham and the University of Lisbon.
Frerichs, N., Dias, A., Dzhatieva, Z., Sinha, M.C.   +3 more
core  

Ultramafic Rocks [PDF]

Nature, 1968
openaire   +1 more source

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

Литосфера, 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, Z. A. Yudalevich, V. V. Khiller   +2 more
doaj   +2 more sources

Discrimination between extrusive and intrusive Archean ultramafic rocks in the Shaw Dome area using selected major and trace elements

, 1979
The ultramafic rocks in the Shaw Dome area, southeast of Timmins, Ontario, are divided on the basis of held criteria into two groups for the purpose of comparing their chemical compositions: (1) extrusive ultramafic rocks consisting of peridotitic ...
T. L. Muir
core   +1 more source

Petrogenesis of ultramafic rocks from the Neoproterozoic Bou Azzer Ophiolite (Morocco): new insights into a long-standing geodynamic question

The Neoproterozoic Bou Azzer Ophiolite, located in the Pan-African orogen of the Anti-Atlas, Morocco, exposes a well-preserved mantle section of the ophiolitic sequence.
Domínguez Carretero, Diego, Maacha, Lhou, Ikenne, Moha, Pujol Solà, Núria, Cambeses, A., Escalona Orellana, Helena, Garcia Casco, Antonio, Proenza Fernández, Joaquin Antonio, Haissen, Faouziya, Arenas Martín, Ricardo, Novo Fernández, Irene   +10 more
core   +1 more source

Serpentine and the geology of serpentinized rocks

, 1991
The mineral name "serpentine' is applied to a series of three minerals, lizardite, antigorite, and chrysotile. All three are produced by the hydration of the ferromagnesian minerals of ultramafic rocks at low temperature and pressure under conditions ...
Malpas, J
core  

Ultramafic Rocks and the Upper Mantle

, 1970
Cosmic abundances of elements and meteorite analogies indicate an ultrabasic mantle. Detailed review of ultramafic rocks in their varied associations suggests that representative mantle sample are included among oceanic and orogenic peridotites, and ...
Wyllie, Peter J.
core  

Petrography and physical-mechanical evaluation of mafic-ultramafic rocks from Atud-Um Khasila, Egypt for dimension stone. [PDF]

Sci Rep
Abdel-Rahman AM, Latif MLA, Khedr MZ, Mohsen SA, Ghoneim MH.   +4 more
europepmc   +1 more source