FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2129792258> ?p ?o ?g. }

• W2129792258 endingPage "409" @default.
• W2129792258 startingPage "395" @default.
• W2129792258 abstract "Geophysical evidence, especially microearthquakes that extend into the upper mantle beneath the inner floor of the Mid-Atlantic and Gorda Ridges, indicates that the axial magma chamber episodically freezes beneath slow spreading ridges. Freezing of the axial magma chamber will result in a variable thermal structure that has important tectonic consequences. Most importantly, large near-axis faults will intersect as the brittle/ductile transition deepens, causing some of the faults to become locked. The topographic effect of fault locking will be a variation in the width of the inner floor from narrow ( 10 km) when a magma chamber is absent. The deep microearthquakes also imply that faults at slow spreading ridges extend into the upper mantle. The nature of these faults at depth is unknown, but the following hypotheses are presented: (1) the faults may be planar and pass downward into aseismic ductile shear zones, and (2) the faults may sole into a flat detachment fault defining a sharp boundary between brittle faulting and homogeneous ductile flow. Such low-angle normal faults are common in continental extensional domains. Large-scale tilting (50°–70°) is probably common at slow spreading ridges and implies either listric faulting or rotation of planar faults and fault blocks (similar to toppling dominoes). Calculations of temperatures at the brittle/ductile transition are made assuming olivine and diabase rheologies for the mantle and crust, respectively. The temperature is approximately 800°C when the transition is at 8 km depth, and approximately 600° when the transition is at 2 km depth. The strength of the lithosphere varies dramatically with the rise and fall of the brittle/ductile transition as magma chambers form and subsequently freeze. Strong lateral temperature gradients will be present when a magma chamber is formed, resulting in localization of faulting within thin weak crust above the chamber. When the magma chamber freezes, lateral temperature gradients will be small and the strength of the lithosphere will be similar over a wide area; this results in active faulting occurring over a width of as much as 60 km. Some ophiolites possibly provide insights to the tectonic processes at slow spreading ridges. The entire crustal section of the Josephine ophiolite was tilted by approximately 50° prior to deposition of overlying pelagic sediments. This tilting probably took place by faulting, suggesting that oceanic faults extended into the upper mantle. Possible oceanic faults have been identified in the Josephine ophiolite, but their oceanic origin cannot be established beyond doubt." @default.
• W2129792258 created "2016-06-24" @default.
• W2129792258 creator A5080406264 @default.
• W2129792258 date "1985-06-01" @default.
• W2129792258 modified "2023-10-16" @default.
• W2129792258 title "Tectonics of slow spreading mid-ocean ridges and consequences of a variable depth to the brittle/ductile transition" @default.
• W2129792258 cites W114281377 @default.
• W2129792258 cites W1518103483 @default.
• W2129792258 cites W1559113515 @default.
• W2129792258 cites W1972167093 @default.
• W2129792258 cites W1974493245 @default.
• W2129792258 cites W1977156689 @default.
• W2129792258 cites W1980630933 @default.
• W2129792258 cites W1987125108 @default.
• W2129792258 cites W1987546717 @default.
• W2129792258 cites W1988650384 @default.
• W2129792258 cites W1992321058 @default.
• W2129792258 cites W1994430007 @default.
• W2129792258 cites W1995102995 @default.
• W2129792258 cites W1995115331 @default.
• W2129792258 cites W1995591192 @default.
• W2129792258 cites W1998671861 @default.
• W2129792258 cites W2000404423 @default.
• W2129792258 cites W2006479049 @default.
• W2129792258 cites W2011939763 @default.
• W2129792258 cites W2012911068 @default.
• W2129792258 cites W2016508757 @default.
• W2129792258 cites W2022461655 @default.
• W2129792258 cites W2024391937 @default.
• W2129792258 cites W2028435878 @default.
• W2129792258 cites W2037666319 @default.
• W2129792258 cites W2041176411 @default.
• W2129792258 cites W2045640759 @default.
• W2129792258 cites W2045685282 @default.
• W2129792258 cites W2048225836 @default.
• W2129792258 cites W2051869367 @default.
• W2129792258 cites W2054015857 @default.
• W2129792258 cites W2059286700 @default.
• W2129792258 cites W2059777175 @default.
• W2129792258 cites W2060469260 @default.
• W2129792258 cites W2067352936 @default.
• W2129792258 cites W2068641796 @default.
• W2129792258 cites W2070236772 @default.
• W2129792258 cites W2077098086 @default.
• W2129792258 cites W2079460275 @default.
• W2129792258 cites W2084796812 @default.
• W2129792258 cites W2086575804 @default.
• W2129792258 cites W2088048513 @default.
• W2129792258 cites W2091589915 @default.
• W2129792258 cites W2094090498 @default.
• W2129792258 cites W2099529855 @default.
• W2129792258 cites W2111830717 @default.
• W2129792258 cites W2113887715 @default.
• W2129792258 cites W2118300017 @default.
• W2129792258 cites W2119856806 @default.
• W2129792258 cites W2123337122 @default.
• W2129792258 cites W2129513811 @default.
• W2129792258 cites W2151394593 @default.
• W2129792258 cites W2155128667 @default.
• W2129792258 cites W2155176139 @default.
• W2129792258 cites W2160496247 @default.
• W2129792258 cites W2168607185 @default.
• W2129792258 cites W2340347543 @default.
• W2129792258 doi "https://doi.org/10.1029/tc004i004p00395" @default.
• W2129792258 hasPublicationYear "1985" @default.
• W2129792258 type Work @default.
• W2129792258 sameAs 2129792258 @default.
• W2129792258 citedByCount "93" @default.
• W2129792258 countsByYear W21297922582012 @default.
• W2129792258 countsByYear W21297922582013 @default.
• W2129792258 countsByYear W21297922582015 @default.
• W2129792258 countsByYear W21297922582016 @default.
• W2129792258 countsByYear W21297922582017 @default.
• W2129792258 countsByYear W21297922582018 @default.
• W2129792258 countsByYear W21297922582019 @default.
• W2129792258 countsByYear W21297922582020 @default.
• W2129792258 countsByYear W21297922582022 @default.
• W2129792258 countsByYear W21297922582023 @default.
• W2129792258 crossrefType "journal-article" @default.
• W2129792258 hasAuthorship W2129792258A5080406264 @default.
• W2129792258 hasConcept C119477230 @default.
• W2129792258 hasConcept C121332964 @default.
• W2129792258 hasConcept C127313418 @default.
• W2129792258 hasConcept C136478896 @default.
• W2129792258 hasConcept C165205528 @default.
• W2129792258 hasConcept C77928131 @default.
• W2129792258 hasConcept C97355855 @default.
• W2129792258 hasConceptScore W2129792258C119477230 @default.
• W2129792258 hasConceptScore W2129792258C121332964 @default.
• W2129792258 hasConceptScore W2129792258C127313418 @default.
• W2129792258 hasConceptScore W2129792258C136478896 @default.
• W2129792258 hasConceptScore W2129792258C165205528 @default.
• W2129792258 hasConceptScore W2129792258C77928131 @default.
• W2129792258 hasConceptScore W2129792258C97355855 @default.
• W2129792258 hasIssue "4" @default.
• W2129792258 hasLocation W21297922581 @default.
• W2129792258 hasOpenAccess W2129792258 @default.
• W2129792258 hasPrimaryLocation W21297922581 @default.

• next