Automated Author ProfileEpstein, Samuel
Epstein, Samuel
Current S-Index
Sum of Dataset Indices for all datasets
Average Dataset Index per Dataset
Average Dataset Index per dataset
Total Datasets
Total datasets for this author
Average FAIR Score
Average FAIR Score per dataset
Total Citations
Total citations to the author's datasets
Total Mentions
Total mentions of the author's datasets
S-Index Interpretation
The S-Index (Sharing Index) is a comprehensive metric that represents the cumulative impact of all your datasets. It is calculated as the sum of Dataset Index scores across all your claimed datasets.
What it means:
- A higher S-index indicates greater overall impact of your datasets relative to typical datasets in their fields of research
- The S-Index grows as you add more datasets or as existing datasets gain more citations and mentions
- It provides a single number to track your research data impact over time
Current S-Index: 2.6 (sum of 7 datasets Dataset Index scores)
More information here.
S-Index Over Time
Cumulative Citations Over Time
Cumulative Mentions Over Time
Datasets
No description available
Authors
- Lowenstam, H A ;
- Epstein, Samuel
No description available
Authors
- Epstein, Samuel ;
- Mayeda, T
No description available
Authors
- Kolodny, Yehoshua ;
- Epstein, Samuel
No description available
Authors
- Kolodny, Yehoshua ;
- Epstein, Samuel
No description available
Authors
- Kolodny, Yehoshua ;
- Epstein, Samuel
No description available
Authors
- Kolodny, Yehoshua ;
- Epstein, Samuel
Water extracted from opal-CT ("porcellanite", "cristobalite"), granular microcrystalline quartz (chert), and pure fibrous quartz (chalcedony) in cherts from the JOIDES Deep Sea Drilling Project is 56‰ to 87‰ depleted in deuterium relative to the water in which the silica formed. This large fractionation is similar in magnitude and sign to that observed for hydroxyl in clay minerals and suggests that water extracted from these forms of silica has been derived from hydroxyl groups within the silica. Delta18O-values for opal-CT at sites 61, 64, 70B and 149 vary from 34.3‰ to 37.2‰ and show no direct correlation with depth of burial. Granular microcrystaUine quartz in these cores is 0.5 ‰ depleted in 18O relative to coexisting opal-CT at sediment depths of 100 m and the depletion increases to 2‰ for sediments buried below 384 m. These relationships suggest that opal-CT forms before significant burial while granular microcrystalline quartz forms during deeper burial at warmer temperatures. The temperature at which opal-CT forms is thus probably approximately equal to the temperature of the overlying bottom water. Isotopic temperatures deduced for opal-CT formation are preliminary and very approximate, but yield Eocene deep-water temperatures of 5-13°C, and 6°C for the upper Cretaceous sample.Pure euhedral quartz crystals lining a cavity in opal-CT at 388 m in core 8-70B-4-CC have a ~delta18O value of +29.8‰ and probably formed near maximum burial. The isotopic temperature is approximately 32 ° C.
Authors
- Knauth, L Paul ;
- Epstein, Samuel