Coogan, Laurence A; Hinton, Richard W (2006): Trace element concentrations in zircons from ODP Holes 147-894G and 153-923A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.721807, Supplement to: Coogan, LA; Hinton, RW (2006): Do the trace element compositions of detrital zircons require Hadean continental crust? Geology, 34(8), 633-636, https://doi.org/10.1130/G22737.1
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Abstract:
The trace element compositions of Hadean zircons have been used in two ways to argue for the existence of Hadean continental crust. One argument is based on low crystallization temperatures of Hadean zircons that have been determined using a novel geothermometer based on the Ti content of zircons in equilibrium with rutile. The second argument is based on using the trace element abundances in zircons to calculate their parental melt compositions, especially the rare earth elements. Here we demonstrate that zircons that grow from a melt formed by basalt differentiation at modern mid-ocean ridges cannot be unambiguously distinguished from Hadean zircons on either of these grounds. Thus, we conclude that the trace element compositions of Hadean zircons are permissive of models that do not include the generation of continental crust in the Hadean.
Other version:
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 12.921100 * Median Longitude: -73.278300 * South-bound Latitude: 2.299600 * West-bound Longitude: -101.525000 * North-bound Latitude: 23.542600 * East-bound Longitude: -45.031600
Date/Time Start: 1993-01-13T21:00:00 * Date/Time End: 1994-01-13T02:45:00
Event(s):
147-894G * Latitude: 2.299600 * Longitude: -101.525000 * Date/Time Start: 1993-01-13T21:00:00 * Date/Time End: 1993-01-15T06:30:00 * Elevation: -3034.0 m * Penetration: 154.5 m * Recovery: 45.15 m * Location: North Pacific Ocean * Campaign: Leg147 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 127.5 m cored; 0 m drilled; 35.4 % recovery
153-923A * Latitude: 23.542600 * Longitude: -45.031600 * Date/Time Start: 1994-01-07T17:27:00 * Date/Time End: 1994-01-13T02:45:00 * Elevation: -2440.0 m * Penetration: 70 m * Recovery: 40.03 m * Location: South Atlantic Ocean * Campaign: Leg153 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 53.6 m cored; 0 m drilled; 74.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Coogan, LA; Hinton, RW (2006): (Table DR1) Trace element concentrations in zircons from ODP Hole 147-894G. https://doi.org/10.1594/PANGAEA.721805
- Coogan, LA; Hinton, RW (2006): (Table DR1) Trace element concentrations in zircons from ODP Hole 153-923A. https://doi.org/10.1594/PANGAEA.721806