Oxygen and carbon isotope data from late calcite and zeolite pore-fill cements at DSDP Site 445

DOI

Oxygen isotopic composition of zeolite pore-fill cements in andesitic volcaniclastic sandstones recovered from DSDP Site 445 ranges from +30.1 to +17.8‰ (SMOW) downhole. This change is controlled by large heat flow from the basement which caused early diagenetic emplacement of zeolites during early basin rifting. d18O-values of late calcite cements range from +25.1 to +27.4‰ (SMOW); their petrographic relation and inferred temperature of formation suggest that calcite cements were formed during late stages of diagenesis. Isotopic composition in these sandstones is in agreement with mineral paragenesis determined microscopically.

Supplement to: Lee, Yong Il (1987): Isotopic aspects of thermal and burial diagenesis of sandstones at DSDP Site 445, Daito Ridge, Northwest Pacific Ocean. Chemical Geology, 65(2), 95-102

Identifier
DOI https://doi.org/10.1594/PANGAEA.704910
Related Identifier IsSupplementTo https://doi.org/10.1016/0168-9622(87)90066-2
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.704910
Provenance
Creator Lee, Yong Il
Publisher PANGAEA
Publication Year 1987
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (133.208 LON, 25.523 LAT); North Pacific/BASIN