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Ocean temperature. --- Paleoceanography. --- Paleoclimatology
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The use of the trace element content of sedimentary pyrite as a proxy for the trace element composition of past oceans has recently emerged. The pyrite proxy has several potential advantages over bulk sample analysis: preservation through metamorphism; little dilution during analysis (samples are ablated not dissolved, allowing for the less abundant elements commonly held in the sulfide fraction to be investigated as proxies); accurate measurement of several elements simultaneously; the ability to screen sediments for hydrothermal overprint; and the technique can give information regarding trace element availably at multiple stages of diagenesis. Because of these multiple strengths, the pyrite trace element proxy is a valuable potential addition to the paleo-ocean chemistry tool kit.
Paleoceanography. --- Pyrites. --- Trace elements.
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Geology, Stratigraphic --- Geology --- Geology --- Paleoceanography --- Paleoceanography --- Stratigraphie --- Géologie --- Géologie --- Paleoceanography --- Paleoceanography
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This is a book about an ocean that vanished six million years ago - the ocean of Tethys. Named after a Greek sea nymph, there is a sense of mystery about such a vast, ancient ocean, of which all that remains now are a few little pools, like the Caspian Sea. There were other great oceans in the history of the Earth - Iapetus, Panthalassa - but Tethys was the last of them, vanishing a mere moment (in geological terms) before Man came on the scene. Once Tethys stretched across theworld. How do we know? And how could such a vast ocean vanish? The clues of its existence are scattered from Morocco t
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Ocean temperature. --- Paleoceanography. --- Paleoclimatology
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