Unknown
PANGAEA
In:
Supplement to: Meyer, Audrey W; Davies, Thomas A (1988): Clay mineralogy of sediments from the Galicia margin, ODP Leg 103. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 461-475, https://doi.org/10.2973/odp.proc.sr.103.131.1988
Publication Date:
2024-01-09
Description:
Samples from Cenozoic and Mesozoic sediments drilled during ODP Leg 103 were analyzed for clay mineralogy. Kaolinite, chlorite, illite, and smectite occur in most of the samples studied; palygorskite and sepiolite occur principally in Paleogene and Eocene brown clays. In general, throughout the section deposited in the syn- and post-rift period, the more calcareous-rich pelagic sediments contain greater amounts of smectite and lesser amounts of kaolinite and chlorite than do the calcareous-poor terrigenous sediments. The clay data presented here also lend support to the general paleoenvironmental interpretation of a relatively warm climate throughout the Cretaceous and early Tertiary and a relatively cooler climate from the Oligocene to the present day.
Keywords:
103-637A; 103-638B; 103-638C; 103-639A; 103-639B; 103-639C; 103-639D; 103-640A; 103-641A; 103-641C; Chlorite; Chlorite (peak height); DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Illite; Illite (peak area); Joides Resolution; Kaolinite; Kaolinite (peak height); Kaolinite+Chlorite; Kaolinite+Chlorite (peak area); Leg103; Ocean Drilling Program; ODP; Palygorskite; Palygorskite (peak area); Sample code/label; Sepiolite; Sepiolite (peak area); Smectite; Smectite (peak area); South Atlantic Ocean; Sum; X-ray diffraction (XRD)
Type:
Dataset
Format:
text/tab-separated-values, 3235 data points
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