Petrogenesis and tectonic implications of Seih Syn-tectonic gabbroic intrusion, South Sinia, Egypt: Insights from whole-rock geochemistry, mineral chemistry and P-T estimate [PDF]
Delta Journal of Science, 2021 The present work deals with the gabbroic intrusion in the Wadi Seih area as a part of the Neoproterozoic Pan-African basement in the southwestern part of Sinai, Egypt. It comprises as small plutons intruded into Seih metamorphic belt.
Ahmed E. Masoud +3 more
doaj +1 more source
The Salittu Formation in southwestern Finland, part I: Structure, age and stratigraphy [PDF]
Bulletin of the Geological Society of Finland, 2016 Because of the relatively low metamorphic grade, low strain and well-preserved early structures in volcanic and volcaniclastic rocks, the Orijärvi triangle (in the center of the larger Orijärvi area) is one of the few locations in the Svecofennian orogen
M. Nironen, I. Mänttäri, M. Väisänen
doaj +1 more source
General geology, alteration, and iron deposits in the Palaeoproterozoic Misi region, northern Finland [PDF]
Bulletin of the Geological Society of Finland, 2003 The Paleoproterozoic Misi region forms the northeastern part of the Peräpohja Schist Belt in northern Finland. The area comprises mafic volcanic land sedimentary rocks, differentiated gabbros, and late-orogenic granitoids.
T. Niiranen, E. Hanski, P. Eilu
doaj +1 more source
Whole-rock chemistry of isotropic gabbros from the Kermanshah ophiolite: Evidence for petrological and source region characteristics of ophiolitic and it's tectonic setting [PDF]
پترولوژی, 2018 The isotropic gabbros of Kermanshah ophiolite are mainly represented by, gabbro, leucogabbro, olivine gabbro, gabbronorite, olivine gabbronorite and Troctolite.
Farhad Aliani, Zeinab Daraeezadeh
doaj +1 more source
Iraqi Geological Journal, 2022 New geochemical data were presented for the mafic (basalts and gabbros) and ultramafic (dunites, serpentinites and pyroxenites) rocks from the Mawat ophiolite exposed in the Zagros suture zone in northeastern Iraq.
Heider Al Humadi +2 more
doaj +1 more source
Mafic and ultramafic igneous rocks of the Raisduoddar-Halti area in the Finnish-Norwegian Caledonides. Petrography, mineralogy and geochemistry [PDF]
Bulletin of the Geological Society of Finland, 1991 The mafic and ultramafic rocks in the Raisduoddar-Halti area constitute a shallow horizontal allochthonous plate in the highest tectono-stratigraphic position of the Finnish Caledonides.
P. Sipilä
doaj +1 more source
Frontiers in Earth Science, 2023 Introduction: The North Qilian orogenic belt, as the Northern branch of the original Tethys tectonic domain, is important for reconstructing the tectonic evolution of the ancient Tethys.
Hao Tian +12 more
doaj +1 more source
SIMS zircon ages and Nd isotope systematics of the 2.2 Ga mafic intrusions in northern and eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2010 Using the SIMS, ID-TIMS and Sm-Nd isotopic methods and the electron microprobe, we have studied several differentiated mafic intrusions of the c. 2.2 Ga gabbro-wehrlite association (GWA) from four Paleoproterozoic schist belts and the Archean Kuhmo ...
E. Hanski, H. Huhma, J. Vuollo
doaj +1 more source
Revista Mexicana de Ciencias Geológicas, 2023 The La Huerta Plutonic Complex (LHPC) forms part of the Cretaceous Mexican Cordillera, located between the well-documented ~80 Ma Puerto Vallarta Batholith (PVB) and the ~65 Ma Manzanillo Plutonic Complex (MPC).
Guillermo A. Ortiz-Joya +5 more
doaj +1 more source
Sm-Nd data for mafic-ultramafic intrusions in the Svecofennian (1.88 Ga) Kotalahti Nickel Belt, Finland - Implications for crustal contamination at the Archaean/Proterozoic boundary [PDF]
Bulletin of the Geological Society of Finland, 2007 Sm-Nd data were determined for eight mafic-ultramafic intrusions from the Svecofennian (1.88 Ga) Kotalahti Nickel Belt, Finland. The intrusions represent both mineralized and barren types and are located at varying distances from the Archaean/Proterozoic
H.V. Makkonen, H. Huhma
doaj +1 more source