Automated Author ProfileBarron, John A
0000-0002-9309-1145
Barron, John A
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: 462.6 (sum of 467 datasets Dataset Index scores)
More information here.
S-Index Over Time
Cumulative Citations Over Time
Cumulative Mentions Over Time
Datasets
The diatom biochronology of ODP Holes 682A and 688E provides a nearly complete offshore reference section to correspond with onshore studies of the Miocene age materials of the East Pisco Basin of Southern Peru, which is known for its excellent preservation of fossil vertebrates. From these holes a nearly complete sequence of low latitude and northeastern Pacific diatoms has been recognized. The missing intervals of this sequence are from ~17 to 14 Ma, caused by dissolution and/or a hiatus, and 23.4 to 21.8 Ma, likely caused by an Early Miocene hiatus. Whereas eastern equatorial Pacific diatom zones are applicable to materials deposited during the Oligocene through Early Miocene, during the Middle to Late Miocene an increase of diatoms associated with cooler water resulted in a transition towards greater applicability of northeast Pacific diatom zones. However, an exception to this cooling trend is noted from material deposited during the 7 to 6 Ma Messinian interval of the latest Miocene, which is dominated by warm water diatoms.
Authors
- Brandon A. Ragan ;
- John A Barron ;
- Thomas J DeVries ;
- Jason Coenen
U-Pb Isotopic ratio measurements of zircon grains from two ash samples outcropping in the Pisco Basin (MG11-10; 14°11.13'S, 76°08.65'W; MG11-60; 14°11.17'S, 76°6.99'W). Analyses were carried out University of Florida, using a Nu-Plasma® Laser Ablation Multi-Collector Inductively Coupled Plasma Mass Spectrometer (LA-MC-ICP-MS). Data reduction was referenced to standard zircon (FC-1) from the Duluth Gabbro dated at 1099.0 ± 0.7 Ma and 1099.1 ± 0.5 Ma (Black et al., 2004). Single-ages are reported in Million of years (Ma) with standard error uncertainties at 2σ and 95% confidence intervals. Ash beds were collected as a tool for determining U-Pb maximum depositional ages by DO and TdV in 2022.
Authors
- Ochoa, Diana ;
- DeVries, Thomas ;
- Barron, John ;
- McDougall, Kristin
The East Pisco Basin is one of several forearc basins situated on the coastal plain of Peru between the Andean Cordillera and Peru-Chile Trench. During the Cenozoic, successive marine transgressions across the East Pisco Basin deposited sequences of Paleogene and Neogene age. Biochronologic studies suggest that a hiatus of approximately 12 million years (~32-20 Ma) separates the youngest Paleogene deposits from the oldest Neogene deposits. A newly recognized lower Miocene sequence, provisionally named the Tunga Formation, shortens that hiatus. The following database provides location and description of samples from the East Pisco Basin, checklists of microfossil assemblages, and taxonomic notes for those assemblages.
Authors
- Kristin McDougall-Reid ;
- Brandon A. Ragan ;
- John A Barron ;
- Thomas J DeVries
No description available
Authors
- Barron, John A ;
- Heusser, Linda E ;
- Herbert, Timothy D ;
- Lyle, Mitchell W
The North American monsoon (NAM), an onshore wind shift occurring between July and September, has evolved in character during the Holocene largely due to changes in Northern Hemisphere insolation. Published paleoproxy and modeling studies suggest that prior to ~8000 cal years BP, the NAM affected a broader region than today, extending westward into the Mojave Desert of California. Holocene proxy SST records from the Gulf of California (GoC) and the adjacent Pacific provide constraints for this changing NAM climatology. Prior to ~8000 cal years BP, lower GoC SSTs would not have fueled northward surges of tropical moisture up the GoC, which presently contribute most of the monsoon precipitation to the western NAM region. During the early Holocene, the North Pacific High was further north and SSTs in the California Current off Baja California were warmer, allowing monsoonal moisture flow from the subtropical Pacific to take a more direct, northwesterly trajectory into an expanded area of the southwestern U.S. west of 114°W. A new upwelling record off southwest Baja California reveals that enhanced upwelling in the California Current beginning at ~7500 cal year BP may have triggered a change in NAM climatology, focusing the geographic expression of NAM in the southwest USA into its modern core region east of ~114°W, in Arizona and New Mexico. Holocene proxy precipitation records from the southwestern U.S. and northwestern Mexico, including lakes, vegetation/pollen, and caves are reviewed and found to be largely supportive of this hypothesis of changing Holocene NAM climatology.
Authors
- Barron, John A ;
- Metcalf, Sarah E ;
- Addison, Jason A
No description available
Authors
- Barron, John A ;
- Larsen, Birger ;
- Shipboard Scientific Party
No description available
Authors
- Barron, John A ;
- Larsen, Birger ;
- Shipboard Scientific Party
No description available
Authors
- Barron, John A ;
- Larsen, Birger ;
- Shipboard Scientific Party
No description available
Authors
- Barron, John A ;
- Larsen, Birger ;
- Shipboard Scientific Party