Paleoproterozoic evolution of the arc–back-arc system in the east Sarmatian Orogen (East European Craton): Zircon SHRIMP geochronology and geochemistry of the Losevo volcanic suite

2017 ◽  
Vol 317 (6) ◽  
pp. 707-753 ◽  
Author(s):  
Roman A. Terentiev ◽  
Konstantin A. Savko ◽  
M. Santosh
Keyword(s):  
East European Craton ◽  
East European ◽  
Shrimp Geochronology ◽  
Volcanic Suite ◽  
Back Arc

LATE SILURIAN/EARLY DEVONIAN GENTLE TECTONIC DEFORMATION IN THE CALEDONIAN FORELAND BASIN (EAST EUROPEAN CRATON, NORTHERN POLAND)

2017 ◽  
Author(s):  
Michał Wyglądała ◽  
◽  
Andrzej Konon ◽  
Barbara Rybak-Ostrowska ◽  
Anna Haluch
Keyword(s):  
Foreland Basin ◽  
East European Craton ◽  
Tectonic Deformation ◽  
Early Devonian ◽  
East European ◽  
Northern Poland

Age, chemistry, and tectonic setting of Miramichi terrane (Early Paleozoic) volcanic rocks, eastern and east-central Maine, USA

2021 ◽  
Vol 57 ◽  
pp. 239-273
Author(s):  
Allan Ludman ◽  
Christopher McFarlane ◽  
Amber T.H. Whittaker
Keyword(s):  
New Brunswick ◽  
Subduction Zone ◽  
Tectonic Setting ◽  
Volcanic Rocks ◽  
Calc Alkaline ◽  
East Central ◽  
Arc Volcanism ◽  
Middle Ordovician ◽  
Volcanic Suite ◽  
Back Arc

Volcanic rocks in the Miramichi inlier in Maine occur in two areas separated by the Bottle Lake plutonic complex: the Danforth segment (Stetson Mountain Formation) north of the complex and Greenfield segment to the south (Olamon Stream Formation). Both suites are dominantly pyroclastic, with abundant andesite, dacite, and rhyolite tuffs and subordinate lavas, breccias, and agglomerates. Rare basaltic tuffs and a small area of basaltic tuffs, agglomerates, and lavas are restricted to the Greenfield segment. U–Pb zircon geochronology dates Greenfield segment volcanism at ca. 469 Ma, the Floian–Dapingian boundary between the Lower and Middle Ordovician. Chemical analyses reveal a calc-alkaline suite erupted in a continental volcanic arc, either the Meductic or earliest Balmoral phase of Popelogan arc activity. The Maine Miramichi volcanic rocks are most likely correlative with the Meductic Group volcanic suite in west-central New Brunswick. Orogen-parallel lithologic and chemical variations from New Brunswick to east-central Maine may result from eruptions at different volcanic centers. The bimodal Poplar Mountain volcanic suite at the Maine–New Brunswick border is 10–20 myr younger than the Miramichi volcanic rocks and more likely an early phase of back-arc basin rifting than a late-stage Meductic phase event. Coeval calc-alkaline arc volcanism in the Miramichi, Weeksboro–Lunksoos Lake, and Munsungun Cambrian–Ordovician inliers in Maine is not consistent with tectonic models involving northwestward migration of arc volcanism. This >150 km span cannot be explained by a single east-facing subduction zone, suggesting more than one subduction zone/arc complex in the region.

The East European craton at the end of the Paleoproterozoic: A new paleomagnetic pole of 1.79–1.75 Ga

2016 ◽  
Vol 71 (1) ◽  
pp. 8-17 ◽  
Author(s):  
N. V. Lubnina ◽  
A. M. Pasenko ◽  
M. A. Novikova ◽  
A. Yu. Bubnov
Keyword(s):  
East European Craton ◽  
East European ◽  
Paleomagnetic Pole

Relative movements of the Bashkirian megazone blocks(the South Urals) according to paleomagnetic data.

2021 ◽  
Author(s):  
Maiia Anosova ◽  
Anton Latyshev ◽  
Alexey Khotylev
Keyword(s):  
Thin Sheet ◽  
Southern Urals ◽  
East European Craton ◽  
Late Paleozoic ◽  
South Urals ◽  
The Southern Urals ◽  
East European ◽  
Northern Regions ◽  
Middle Paleozoic ◽  
Southern Central

<p>     The research object is magmatic bodies from the southern, central and northern parts of the Bashkirian megazone (the Southern Urals, meridian length of the Bashkirian megazone - 300 km). Most of the study intrusions have the Riphean age. In the Riphean the Bashkirian megazone was part of the East European craton. And in the Late Paleozoic rocks of the Bashkirian megazone were involved in the collision process. The formation of most studies bodies is associated with the Mashak magmatic event (the Riphean), which marks the collapse of the super-continent Nuna.</p><p>     The Middle Paleozoic component was isolated in 28 bodies. Probably it is the secondary component, that is widespread on the Southern Urals and has been repeatedly identified by other researchers. Directions comparison from different districts showed that there was a rotation of the southern, northern and central blocks of Bashkirian megazone relative to each other during the Late Paleozoic collision. At the same time, paleomagnetic directions from the northern regions (which are about 40-50 km apart from each other) statistically coincide or differ not so much. Which means that they were stable or relatively stable.</p><p>     Besides, the Riphean component was isolated and the paleomagnetic pole for the boundary of the Lower and Middle Riphean of the East European Craton (1349+/-11 Ma) is calculated from 8 thin sheet intrusions. Plat=8.4; Plong=162.4; A95=4.1.</p>

The missing craton edge: Crustal structure of the East European Craton beneath the Carpathian Orogen revealed by double-difference tomography

2021 ◽  
Vol 197 ◽  
pp. 103390
Author(s):  
F. Borleanu ◽  
L. Petrescu ◽  
B. Enescu ◽  
M. Popa ◽  
M. Radulian
Keyword(s):  
Crustal Structure ◽  
East European Craton ◽  
Double Difference ◽  
East European

scholarly journals Detrital zircon U-Pb and Hf constraints on provenance and timing of deposition of the Mesoproterozoic to Cambrian sedimentary cover of the East European Craton, Belarus

2019 ◽  
Vol 331 ◽  
pp. 105352 ◽  
Author(s):  
Mariusz Paszkowski ◽  
Bartosz Budzyń ◽  
Stanisław Mazur ◽  
Jiří Sláma ◽  
Leonid Shumlyanskyy ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Sedimentary Cover ◽  
East European Craton ◽  
East European
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