Results 41 to 50 of about 32,456 (106)

U/Pb and Pb/Pb zircon ages for arc-related intrusions of the Bolu Massif (W Pontides, NW Turkey): evidence for Late Precambrian (Cadomian) age

, 2005
We present new U/Pb and Pb/Pb radiometric age data from two tectono-stratigraphic units of the regionally extensive Bolu Massif, in the W Pontides (Istanbul Fragment), N Turkey.
Mundil, Roland, USTAÖMER, Petek Ayda, Renne, Paul R.   +2 more
core   +1 more source

The Cadomian late-orogenic alkaline magmatism in the Ossa-Morena Zone (Iberian Massif): preliminary cartography, petrography, and geochemistry of the Almedral massif

, 1999
The Almendral massif is located in the north-western branch of the Olivenza-Monesterio antiform (Ossa Morena Zone, Iberian Massif, Spain). The pluton is composed by gabbros, sienites and alkaline granites which define an alkaline/transitional association.
Alonso Olazabal, Ainhoa, Sánchez Carretero, R., Carracedo Sánchez, Manuel, Eguiluz, Luis   +3 more
core  

U-Pb zircon geochronology and phase equilibria modelling of HP-LT rocks in the Ossa-Morena Zone, Portugal. [PDF]

Int J Earth Sci, 2020
Akker IV, Tajčmanová L, Marques FO, Burg JP.   +3 more
europepmc   +1 more source

Cambrian ensialic rift-related magmatism in the Ossa-Morena Zone [PDF]

, 2008
The Late Ediacaran (c. 560–550 Ma) Série Negra sediments of the Évora–Aracena metamorphic belt, Ossa-Morena Zone, SW Iberian Massif, preserve a record of the erosion of an Avalonian–Cadomian magmatic arc and subsequent related turbiditic sedimentation ...
Fernandez, C., Chichorro, Martim, Silva, Jose B., Pereira, M. Francisco, Diaz-Azpiroz, M., Pin, Ch., Williams, Ian S.   +6 more
core  

Tectonic significance of Late Ordovician granitic magmatism and clastic sedimentation on the northern margin of Gondwana (Tavsanli Zone, NW Turkey)

, 2013
Metasedimentary schists and a small crosscutting metagranite underlie a Mesozoic metamorphosed carbonate platform within the regional Anatolide tectonic belt of northern Turkey. These lithologies are inferred to have formed part of the northern margin of
Ustaomer, Timur, Ozbey, Zeynep, Robertson, Alastair H. F., USTAÖMER, Petek Ayda   +3 more
core   +1 more source

Inherited arc signature in Ediacaran and Early Cambrian basins of [PDF]

, 2006
Geochemical data from clastic rocks of the Ossa-Morena Zone (Iberian Massif) show that the main source for the Ediacaran and the Early Cambrian sediments was a recycled Cadomian magmatic arc along the northern Gondwana margin. The geodynamic scenario for
Linnemann, Ulf, Chichorro, Martim, Silva, Jose B., Pereira, M. Francisco, Eguiluz, Luis   +4 more
core  

Tectonic significance of Late Ordovician granitic magmatism and clastic sedimentation on the northern margin of Gondwana (Tavşanlı Zone, NW Turkey)

, 2016
Metasedimentary schists and a small crosscutting metagranite underlie a Mesozoic metamorphosed carbonate platform within the regional Anatolide tectonic belt of northern Turkey.
Timur Ustaömer (2840900), P. Ayda Ustaömer (2840906), Zeynep Özbey (2840903), Alastair H. F. Robertson (2807626)   +3 more
core   +1 more source

New insights from U–Pb zircon dating of Early Ordovician magmatism on [PDF]

, 2008
The Central Iberian–Ossa-Morena transition zone (SW Iberian Massif) represents a segment of the northern Gondwana margin with a long geodynamic evolution, characterized by the superposition of Cadomian and Variscan events.
Montero, Pilar, Sola, A. Rita, Zinger, T., Pereira, M. Francisco, Bea, Fernando, Ribeiro, Luisa, Neiva, Ana M.R., Williams, Ian S.   +7 more
core  

Late-Proterozoic to Paleozoic history of the peri-Gondwana Calabria-Peloritani Terrane inferred from a review of zircon chronology. [PDF]

Springerplus, 2016
Fornelli A, Micheletti F, Piccarreta G.
europepmc   +1 more source

Geological archive of the onset of plate tectonics. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
Cawood PA, Hawkesworth CJ, Pisarevsky SA, Dhuime B, Capitanio FA, Nebel O.   +5 more
europepmc   +1 more source