Shallow forearc mantle dynamics and geochemistry: New insights from IODP Expedition 366
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چکیده
منابع مشابه
IODP Expedition 356: Indonesian Throughflow
Week 6 of Expedition 356 (Indonesian Throughflow) consisted of completing operations at Site U1462 (including another successful downhole logging deployment in Hole U1462C) and the start of operations at Site U1463 (proposed site NWS-2A). The science party was able to finalize all outstanding reports from Site U1461, particularly downhole logging and stratigraphic correlation, and begin finaliz...
متن کاملHalogen and I systematics in gas hydrate fields at the northern Cascadia margin (IODP Expedition 311): Insights from numerical modeling
[1] We measured halogen concentrations and I/I ratios in five drilling sites of Integrated Ocean Drilling Program Expedition 311 (offshore Vancouver Island, Canada) in order to identify potential sources of fluids and methane in gas hydrate fields. Iodine is dominated by organic decomposition and transports with fluids in reducing environments and the presence of the cosmogenic radioisotope I (...
متن کاملIODP Expedition 340: Lesser Antilles Volcanism and Landslides
Integrated Ocean Drilling Program (IODP) Site U1398 (CARI-09B, 14°16.70’N, 61°53.34’W, 2935 mbsl) is located west of Martinique. The objective of this site is to characterize the sedimentation processes (related to volcanic activity or not) in the backarc Grenada Basin. It is planned to drill through hemipelagic sediments and turbidites and retrieve a complete sedimentation record down to a dep...
متن کاملThe first billion years: new insights from geochemistry
Prologue: (V)ast globes. . . after reaching the last stages of ebullition, were coveredwith scoriae like bubbling foam. And the crust which covered the molten matter of the globe and which hardened from the fused condition would be like scoria, as happens with metals in the furnace. If then the great framework of the earth, the exposed rocks, the imperishable silicates, are almost entirely vitr...
متن کاملIodp Expedition 308: Gulf of Mexico Hydrogeology Site U1322 Summary
Site U1322 is the easternmost site drilled in the Ursa basin by Expedition 308. Of the three sites in the Ursa Basin, Site U1322 has the thinnest sediment cover above the permeable Blue Unit. The principal objectives of drilling Site U1322 were to document rock physical properties at the location of minimal overburden in the Ursa Basin, measure in-situ formation temperature and pressure, docume...
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ژورنال
عنوان ژورنال: Lithos
سال: 2019
ISSN: 0024-4937
DOI: 10.1016/j.lithos.2018.10.038