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Topographic relief and sediment thickness: Their effects on the thermal evolution of the oceanic crust
Author(s) -
Abbott Dallas H.,
Stein Carol A.,
Diachok Orest
Publication year - 1992
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/92gl01996
Subject(s) - geology , crust , oceanic crust , basement , sediment , heat flow , pacific ocean , geomorphology , oceanography , thermal , seismology , geophysics , meteorology , archaeology , history , physics , subduction , tectonics
We compiled a suite of 490 heat flow measurements from the Pacific Ocean in areas with less than 85 m of sediment. Heat flow patterns at different basement ages vary with topographic relief. Areas with reliefs < 300 meters are conductively blanketed at 40–60 m.y. and may stop convecting at 70–90 m.y. Areas with reliefs > 300 meters are conductively blanketed at 70–90 m.y. and convect out to ≥ 90–110 m.y.