Evidence for deep-water production in the North Pacific Ocean during the early Cenozoic warm interval
Article Abstract:
The records of neodymium isotopes from two cores in the Pacific Ocean that show a shift in deep-water production from the Southern Ocean to the North Pacific ~65 million years (Myr) ago are reported. The relative timing of changes in the neodymium and oxygen isotope records show that changes in Cenozoic deep-water circulation pattern was the consequence, not the cause, of extreme Cenozoic warmth.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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Experimental evidence that potassium is a substantial radioactive heat source in planetary cores
Article Abstract:
The hypothesis that 40 K is a significant radioactive heat source in the Earth's core is examined experimentally. The high pressure, high temperature data depicted conclusively that potassium enters iron sulphide melts in a strongly temperature-dependent fashion and thus 40 K is a substantial radioactive heat source in the cores of the Earth and Mars.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
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A diffusion mechanism for core-mantle interaction
Article Abstract:
The experimental results from a study of grain-boundary diffusion of siderophile elements through polycrystalline MgO is presented. The findings could be used as a potential fast pathway for chemical communication between the core and mantle.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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