Results 61 to 70 of about 9,924 (222)

Paleomagnetism of the Scourie Dykes, Lewisian Foreland, NW Scotland: Constraints on Early Paleoproterozoic Paleogeography of Kenorland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The Scourie dyke swarm in the Lewisian foreland of northwest Scotland provides key constraints on the Paleoproterozoic evolution of the North Atlantic craton. High‐precision U‐Pb geochronology identifies two distinct intrusive phases at ∼2.41–2.38 Ga and ∼2.00 Ga.
M. Mirzaei, V. A. Kravchinsky, F. Alizadeh, L. Heaman, A. Goguitchaichvili   +4 more
wiley   +1 more source

Clayters Beach - Older fractured gabbro cut by granite-gabbro mixing zone.

, 2019
Clayters Beach - Older fractured gabbro cut by granite-gabbro mixing zone.https://digitalmaine.com/mgs_geologic_field_photos/6158/thumbnail ...
Marvinney, Robert G
core  

Bulk rock composition from the Tiger Gabbro complex from Dragontail Hills (Spatulate Ridge) and Apostrophe Island, Antarctica

, 2014
Bulk rock composition from the Tiger Gabbro complex from Dragontail Hills (Spatulate Ridge) and Apostrophe Island ...
Kosanke, Dominique, Glen Phillips (2845310), Estrada, Solveig, Phillips, Glen, Henjes-Kunst, Friedhelm, Dominique Kosanke (6960266), Andreas L Läufer (6960260), Solveig Estrada (6960263), Friedhelm Henjes-Kunst (6960254), Koepke, Jürgen, Jürgen Koepke (6960257), Piepjohn, Karsten, Karsten Piepjohn (4036178), Läufer, Andreas   +13 more
core   +1 more source

The Pobei Cu-Ni and Fe ore deposits in NW China are comagmatic evolution products: evidence from ore microscopy, zircon U-Pb chronology and geochemistry

Geologica Acta, 2017
The Pobei mafic-ultramafic complex in northwestern China comprises magmatic Cu-Ni sulfide ore deposits coexisting with Fe-Ti oxide deposits. The Poshi, Poyi, and Podong ultramafic intrusions host the Cu-Ni ore. The ultramafic intrusions experienced four
Y.G. LIU, W.Y. LI, X.B. LÜ, Y.H. HUO, B. ZHANG   +4 more
doaj  

Formation of clay minerals and exhumation of lower‐crustal rocks at Atlantis Massif, Mid‐Atlantic Ridge

Geochemistry, Geophysics, Geosystems, 2008
Low‐temperature alteration products in gabbros from the ocean floor have significant implications for incipient processes of seawater‐rock interaction and exhumation tectonics of the lower‐crustal rocks.
Toshio Nozaka, Patricia Fryer, Muriel Andreani   +2 more
doaj   +1 more source

Tracing Orogenic Evolution From Multi‐Detrital Mineral Records: U‐Pb Geochronology and Trace‐Element Constraints From Glacial Diamictites

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Integrating multiple detrital mineral systems provides a powerful framework for reconstructing source‐region tectonothermal evolution because different minerals record complementary aspects of magmatic and metamorphic processes. Glacial diamictites are particularly valuable for this approach because extensive glacial erosion can sample broad ...
Lijun Wang, Shoufa Lin, Wenjiao Xiao, Cees R. van Staal, Chris R. M. McFarlane, Zhijun Niu, Fang Song, Qihang Wu   +7 more
wiley   +1 more source

Element composition of amphiboles from gabbroic rocks of the Tiger Gabbro complex, Spatulate Ridge and Apostrophe Island, Antarctica

, 2014
Element composition of amphiboles from gabbroic rocks of the Tiger Gabbro complex, Spatulate Ridge and Apostrophe Island ...
Kosanke, Dominique, Glen Phillips (2845310), Estrada, Solveig, Phillips, Glen, Henjes-Kunst, Friedhelm, Dominique Kosanke (6960266), Andreas L Läufer (6960260), Solveig Estrada (6960263), Friedhelm Henjes-Kunst (6960254), Koepke, Jürgen, Jürgen Koepke (6960257), Piepjohn, Karsten, Karsten Piepjohn (4036178), Läufer, Andreas   +13 more
core   +1 more source

Element composition of clinopyroxenes from gabbroic rocks of the Tiger Gabbro complex, Spatulate Ridge and Apostrophe Island, Antarctica

, 2014
Element composition of clinopyroxenes from gabbroic rocks of the Tiger Gabbro complex, Spatulate Ridge and Apostrophe Island ...
Kosanke, Dominique, Glen Phillips (2845310), Estrada, Solveig, Phillips, Glen, Henjes-Kunst, Friedhelm, Dominique Kosanke (6960266), Andreas L Läufer (6960260), Solveig Estrada (6960263), Friedhelm Henjes-Kunst (6960254), Koepke, Jürgen, Jürgen Koepke (6960257), Piepjohn, Karsten, Karsten Piepjohn (4036178), Läufer, Andreas   +13 more
core   +1 more source

Gabbros from IODP Site 1256, equatorial Pacific: Insight into axial magma chamber processes at fast spreading ocean ridges

Geochemistry, Geophysics, Geosystems, 2011
The ODP/IODP multileg campaign at ODP Site 1256 (Cocos plate, eastern equatorial Pacific) provides the first continuous in situ sampling of fast spreading ocean crust from the extrusive lavas, through the sheeted dikes and down into the uppermost gabbros.
J. Koepke, L. France, T. Müller, F. Faure, N. Goetze, W. Dziony, B. Ildefonse   +6 more
doaj   +1 more source

Clayters Beach - Granite-gabbro mixing

, 2019
Clayters Beach - Granite-gabbro mixinghttps://digitalmaine.com/mgs_geologic_field_photos/6155/thumbnail ...
Marvinney, Robert G
core