Mineralogy, rare earth elements, and strontium isotopic composition of phosphorites and phosphatized rocks from the Rio Grande Rise, south Atlantic Ocean
By Mariana Benites and Kira L. Mizell
https://doi.org/10.5066/P9CFVCWN
Dates
Published: June 4, 2021
Data Collected: Jan. 26, 2018 – Feb. 24, 2018
Summary
Phosphorites and phosphatized rocks from the summit of the Rio Grande Rise were collected via dredge during the oceanographic research cruise RGR1 to the western RGR. The location (latitude, longitude, depth), mineralogy, concentrations of phosphorus and rare earth elements, and 87Sr/86Sr ratios of phosphorites and phosphatized FeMn crusts, ironstones and carbonates from 10 dredge sites are presented here. These data were used to determine the presence of carbonate fluorapatite in different rock types, the age of carbonate fluorapatite and the characteristics of the phosphatizing fluid.
Sampling Data
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Mineralogy, rare earth elements, and strontium isotopic composition of phosphorites and phosphatized rocks from the Rio Grande Rise, south Atlantic Ocean
Phosphorites and phosphatized rocks from the summit of the Rio Grande Rise (RGR) in the south Atlantic Ocean were collected via dredge during the oceanographic research cruise RGR1 to the western RGR. The location (latitude, longitude, depth), mineralogy, concentrations of phosphorus and rare earth elements, and 87Sr/86Sr ratios of phosphorites and phosphatized FeMn crusts, ironstones, and carbonates from 10 dredge sites are presented here. These data were used to determine the presence of carbonate fluorapatite in different rock types, the age of carbonate fluorapatite and the characteristics of the phosphatizing fluid.
Data Files
RGR1_P_mineral_chem_Sr_data.csv - 13.1 KB
Metadata Files
RGR1_P_mineral_chem_Sr_metadata.xml - 38.4 KB
RGR1_P_mineral_chem_Sr_metadata.txt - 38.1 KB
Related Field Activities
- 2018-602-FA - View Details
Suggested Citation
Benites, M. and Mizell, K., 2021, Mineralogy, rare earth elements, and strontium isotopic composition of phosphorites and phosphatized rocks from the Rio Grande Rise, south Atlantic Ocean: U.S. Geological Survey data release, https://doi.org/10.5066/P9CFVCWN.