FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4229445638> ?p ?o ?g. }

• W4229445638 endingPage "375" @default.
• W4229445638 startingPage "285" @default.
• W4229445638 abstract "Collision, high-angle contraction, crustal thickening and heating at 555–516 Ma, primed the Damara Belt ready for crustal collapse, which was triggered by a transition to ENE–WSW contraction along the length of the belt in response to orogenic events in east Gondwana at 516–505 Ma. Along-orogen shortening reworked and thickened the high-grade core of the belt, increasing gravitational instability, and establishing an NW–SE extension direction across the belt that was conducive to reactivation of pre-existing structures and eventual collapse. This extension direction persisted, and the switch to vertical σ1 and collapse was signalled by decompression melting at ∼502 Ma and subsequent rapid cooling. Collapse was focused on the high-grade core of the belt that was exhumed as a ∼170 km wide, semi-coherent massif-type metamorphic core complex with steep extensional shear zones and faults in the marginal flanks. During exhumation the core complex was reactivated by oblique-slip extensional shear zones that responded to external transient stress fields. Reactivation by middle- to lower-amphibolite facies dextral-normal shear zones at ∼500–495 Ma and ∼495–490 Ma, involved E–W to ENE–WSW shortening consistent with accretionary events in the west Gondwana margin during the Pampean Orogeny. Reactivation by greenschist facies sinistral-normal shear zones at ∼485 Ma, involved N–S shortening consistent with accretionary events in the south Gondwana margin during the Famatinian Orogen. Early stages of exhumation involved decompression melting, flattening folds and ductile ultramylonite zones within carbonate that formed by NW–SE extension. Late stage exhumation in the brittle field from ∼480 Ma onwards, involved a stress-switch to radial extension directions dominated by NE–SW. This stage involved flat-lying breccia, inclined faults, vertical fractures, and oxidizing fluids partitioned into the top of the lower-levels of the massif. Ongoing exhumation of the core complex drove localized NW–SE shortening within the flanking margins and hanging-wall, and produced low-strain reverse structures that straddle the ductile to brittle transition. The pressure difference between exhumed massif (4.8–5.5 kbar) and hanging-wall margins (3.9–4.2 kbar), indicate that ∼3.2–4.6 km of crust was stripped from above the core complex." @default.
• W4229445638 created "2022-05-11" @default.
• W4229445638 creator A5011363558 @default.
• W4229445638 creator A5017982480 @default.
• W4229445638 creator A5038145024 @default.
• W4229445638 creator A5048235604 @default.
• W4229445638 creator A5064274979 @default.
• W4229445638 creator A5064912282 @default.
• W4229445638 creator A5076959029 @default.
• W4229445638 creator A5078660437 @default.
• W4229445638 creator A5089445806 @default.
• W4229445638 date "2022-09-01" @default.
• W4229445638 modified "2023-10-09" @default.
• W4229445638 title "Episodic intra-continental reactivation during collapse of a collisional orogen: The Damara Belt, Namibia" @default.
• W4229445638 cites W1262929879 @default.
• W4229445638 cites W1491314859 @default.
• W4229445638 cites W1491745874 @default.
• W4229445638 cites W1513468313 @default.
• W4229445638 cites W1566200480 @default.
• W4229445638 cites W1605368522 @default.
• W4229445638 cites W1868659645 @default.
• W4229445638 cites W1964322474 @default.
• W4229445638 cites W1964990445 @default.
• W4229445638 cites W1966358143 @default.
• W4229445638 cites W1966868923 @default.
• W4229445638 cites W1967005613 @default.
• W4229445638 cites W1968213772 @default.
• W4229445638 cites W1968729709 @default.
• W4229445638 cites W1970565634 @default.
• W4229445638 cites W1971953156 @default.
• W4229445638 cites W1972909865 @default.
• W4229445638 cites W1973648333 @default.
• W4229445638 cites W1976187498 @default.
• W4229445638 cites W1976653533 @default.
• W4229445638 cites W1977382752 @default.
• W4229445638 cites W1977438113 @default.
• W4229445638 cites W1977634574 @default.
• W4229445638 cites W1978417218 @default.
• W4229445638 cites W1978567788 @default.
• W4229445638 cites W1979416069 @default.
• W4229445638 cites W1979638106 @default.
• W4229445638 cites W1980155029 @default.
• W4229445638 cites W1981225065 @default.
• W4229445638 cites W1981305277 @default.
• W4229445638 cites W1981736444 @default.
• W4229445638 cites W1984118562 @default.
• W4229445638 cites W1985160890 @default.
• W4229445638 cites W1985216638 @default.
• W4229445638 cites W1987666342 @default.
• W4229445638 cites W1988353311 @default.
• W4229445638 cites W1989192163 @default.
• W4229445638 cites W1990728952 @default.
• W4229445638 cites W1991037217 @default.
• W4229445638 cites W1994320114 @default.
• W4229445638 cites W1995137647 @default.
• W4229445638 cites W1995889397 @default.
• W4229445638 cites W1996379620 @default.
• W4229445638 cites W1997842666 @default.
• W4229445638 cites W1998144357 @default.
• W4229445638 cites W1998285276 @default.
• W4229445638 cites W1998977948 @default.
• W4229445638 cites W2000326123 @default.
• W4229445638 cites W2001813783 @default.
• W4229445638 cites W2002661136 @default.
• W4229445638 cites W2003572419 @default.
• W4229445638 cites W2004075030 @default.
• W4229445638 cites W2005091733 @default.
• W4229445638 cites W2005895950 @default.
• W4229445638 cites W2007557466 @default.
• W4229445638 cites W2008130752 @default.
• W4229445638 cites W2010809802 @default.
• W4229445638 cites W2011478150 @default.
• W4229445638 cites W2012608238 @default.
• W4229445638 cites W2014934612 @default.
• W4229445638 cites W2015239163 @default.
• W4229445638 cites W2015324275 @default.
• W4229445638 cites W2016529524 @default.
• W4229445638 cites W2019106371 @default.
• W4229445638 cites W2019877001 @default.
• W4229445638 cites W2020003225 @default.
• W4229445638 cites W2020980433 @default.
• W4229445638 cites W2021147759 @default.
• W4229445638 cites W2021954729 @default.
• W4229445638 cites W2024108081 @default.
• W4229445638 cites W2024988782 @default.
• W4229445638 cites W2027508217 @default.
• W4229445638 cites W2027816884 @default.
• W4229445638 cites W2031380205 @default.
• W4229445638 cites W2031857048 @default.
• W4229445638 cites W2032506982 @default.
• W4229445638 cites W2032691976 @default.
• W4229445638 cites W2032803594 @default.
• W4229445638 cites W2034472228 @default.
• W4229445638 cites W2035045796 @default.
• W4229445638 cites W2039570402 @default.
• W4229445638 cites W2040371906 @default.
• W4229445638 cites W2041724832 @default.
• W4229445638 cites W2043448952 @default.

• next