Uranium in marine basalts

The uranium content of glass from chilled margins of oceanic tholeiitic basalt flows is generally <0.1 ppm, even for old samples with highly altered crystalline interiors. Such low values represent the original whole rock concentrations, although subsequent to eruption low-temperature weathering...

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Bibliographic Details
Main Author: MacDougall, J Douglas
Format: Dataset
Language:English
Published: PANGAEA 1977
Subjects:
16-163
18-177A
2-10
22-211
22-213
22-215
23-220
24-231
24-236
24-238
25-240
34-319
34-320
5-32
5-36
5-37
5-39
Deep Sea Drilling Project
DRILL
Drilling/drill rig
DSDP
Glomar Challenger
Indian Ocean//BASIN
Indian Ocean//FRACTURE ZONE
Indian Ocean/Arabian Sea/HILL
Indian Ocean/Gulf of Aden/BASIN
Leg16
Leg18
Leg2
Leg22
Leg23
Leg24
Leg25
Leg34
Leg5
North Atlantic/CONT RISE
North Pacific/CONT RISE
North Pacific/HILL
North Pacific/PLAIN
North Pacific/RIDGE
South Pacific/BASIN
Pacific
Indian
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.715064
https://doi.org/10.1594/PANGAEA.715064
Description
Summary:The uranium content of glass from chilled margins of oceanic tholeiitic basalt flows is generally <0.1 ppm, even for old samples with highly altered crystalline interiors. Such low values represent the original whole rock concentrations, although subsequent to eruption low-temperature weathering has added uranium, and other elements, to the crystalline portions of these basalts. Consideration of the K/U ratios of altered samples suggests that basalt weathering may provide the major oceanic sink for these two elements.

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