Results 61 to 70 of about 7,253 (231)

The petrology and genesis of the Paleoproterozoic mafic intrusion-hosted Co-Cu-Ni deposit at Hietakero, NW Finnish Lapland [PDF]

Bulletin of the Geological Society of Finland, 2018
Cobalt is a highly sought-after metal due to its economic importance in many hightech applications. It is mainly obtained from sedimentary-hosted Cu-Co deposits and magmatic Ni-Cu deposits as a by-product. We describe a recently discovered Co-enriched Cu-
Konnunaho, J.P., Hanski, E.J., Karinen, T.T., Lahaye, Y., Makkonen, H.V.   +4 more
doaj   +1 more source

Constraints on the Timing and Lower Crustal Accretion at the Schulz Massif, Mohns Ridge, Arctic Mid Ocean Ridges

Geochemistry, Geophysics, Geosystems
The ultraslow‐spreading Mohns Ridge is a key supersegment of the Arctic Mid‐Ocean system, where it represents a boundary between the Jan Mayen hotspot in the south and the highly anomalous Knipovich Ridge to the north.
A. Bjerga, H. H. Stubseid, L. E. R. Pedersen, F. Corfu, M. Whitehouse, R. B. Pedersen   +5 more
doaj   +1 more source

MINERAL CHEMISTRY OF OPHIOLITIC GABBROS WITHIN CENTRAL ANATOLIA: HIRFANLI DAM GABBROS

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2019
The tectonic evolution of the magmatic rocks the Central Anatolia (CA) began at the late Mesozoic with closure of Neotethys in the region. The Central Anatolia has experienced several magmatic events including felsic and mafic intrusions originated from collisional and/or extensional tectonic events. The felsic magmatism of the CA are well reported and
Koralay, Tamer, Kadıoğlu, Yusuf Ka?an, Deniz, Kıymet, Güllü, Bahattin   +3 more
openaire   +2 more sources

Drilling to Gabbro in Intact Ocean Crust [PDF]

Science, 2006
Sampling an intact sequence of oceanic crust through lavas, dikes, and gabbros is necessary to advance the understanding of the formation and evolution of crust formed at mid-ocean ridges, but it has been an elusive goal of scientific ocean drilling for decades.
D. S. WILSON, D. A. H. TEAGLE, J. C. ALT, N. R. BANERJEE, S. UMINO, S. MIYASHITA, G. D. ACTON, R. ANMA, S. R. BARR, A. BELGHOUL, J. CARLUT, D. M. CHRISTIE, R. M. COGGON, K. M. COOPER, C. CORDIER, L. CRISPINI, S. RODRIGUEZ DURAND, F. EINAUDI, L. GALLI, Y. J. GAO, J. GELDMACHER, L. A. GILBERT, N. W. HAYMAN, E. HERRERO BERVERA, N. HIRANO, S. HOLTER, S. INGLE, S. J. JIANG, U. KALBERKAMP, M. KERNEKLIAN, J. KOEPKE, C. LAVERNE, H. L. L. VASQUEZ, J. MACLENNAN, S. MORGAN, N. NEO, H. J. NICHOLS, S. H. PARK, M. K. REICHOW, T. SAKUYAMA, T. SANO, R. SANDWELL, B. SCHEIBNER, C. E. SMITH DUQUE, S. A. SWIFT, P. TARTAROTTI, A. A. TIKKU, M. TOMINAGA, E. A. VELOSO, T. YAMASAKI, S. YAMAZAKI, C. ZIEGLER   +51 more
openaire   +3 more sources

Seafloor Displacements Across the Mid‐Ocean Ridge Eruption Cycle Modulated by Mush Zone Viscosity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Mid‐ocean ridges (MORs) are active volcanic systems where axial magma lenses (AMLs) are replenished on decadal time scales, enabling frequent dike intrusions. The associated seafloor deformation, however, remains scarcely understood. Here we assess this deformation by simulating cycles of steady AML inflation followed by instantaneous dike ...
H. Boulze, J.‐A. Olive
wiley   +1 more source

Clayters Beach - Granite-gabbro mixing [PDF]

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

Co-mingled gabbro-granite (Ollie Gates) [PDF]

, 2019
Co-mingled gabbro-granite (Ollie Gates)https://digitalmaine.com/mgs_geologic_field_photos/6229/thumbnail ...

core   +2 more sources

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

Archaeometry, Volume 68, Issue 4, Page 659-673, August 2026.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot, Luis Berrocal‐Rangel, Manuel Fernández‐Götz   +2 more
wiley   +1 more source

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

High‐Resolution 3‐D Lithospheric Structure of the Subducting Carnegie Ridge and the Ecuadorian Margin Imaged From Teleseismic Receiver Functions

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Ecuadorian margin is a forearc‐arc system shaped by oceanic terrane accretion and Carnegie Ridge subduction, yet the accretion mechanism and ridge subduction extent remain poorly constrained. Using teleseismic P‐wave receiver functions from dense seismic arrays, we image velocity discontinuities within the overriding plate and subducting ...
Cong Li, Susan L. Beck, Jonathan R. Delph, Boe Ericksen, Anne Meltzer, Colton Lynner, Mario Ruíz, Mónica Segovia, Stephen Hernández, Sandro Vaca, Alexander Wickham Piotrowski, Gabriela Ponce   +11 more
wiley   +1 more source