David H Loyd
Biographic Data
| ID | 7517763 |
|---|---|
| NAME | David H Loyd |
| GIVEN NAMES | David H |
| FAMILY NAME | Loyd |
| SIGNATURE | LOYD D H |
| VERIFIED | No |
| TOTAL WORKS | 3 |
| TOTAL CITATIONS | 4 |
| WORKS AS AUTHOR | 3 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1995 |
| LATEST PUBLICATION YEAR | 2000 |
| H-INDEX | 1 |
A paleoclimate reconstruction for southwestern Texas using oxalate residue from lichen as a paleoclimate proxy
Origin of the Whewellite-Rich Rock Crust in the Lower Pecos Region of Southwest Texas and Its Significance to Paleoclimate Reconstructions
A calcium oxalate (whewellite)-rich crust occurs on exposed limestone surfaces in dry rock and open air shelters in the Lower Pecos region of southwest Texas. The crust, which also contains gypsum and clay, formed over silica-rich limestone during the Holocene. SEM and optical photomicrographs reveal similarities between whewellite microstructures and the lichen Aspicilia calcarea. This desert lichen is known to produce calcium oxalate, and has b…
Analysis of the rock accretions in the lower pecos region of southwest texas
Calcium oxalate (whewellite) was found to be the primary component of crusts on limestone in the dry rock shelters throughout the Lower Pecos region of Texas. This material forms a translucent patina that covers the pictographs in this area. Evidence from analyses using SEM/EDS, FTIR, XRD, Raman spectroscopy, and AMS is presented that suggests the oxalate‐rich crusts were produced by metabolic activity of lichen or fungi on or near the surface of…
Analysis of the rock accretions in the lower pecos region of southwest texas
Calcium oxalate (whewellite) was found to be the primary component of crusts on limestone in the dry rock shelters throughout the Lower Pecos region of Texas. This material forms a translucent patina that covers the pictographs in this area. Evidence from analyses using SEM/EDS, FTIR, XRD, Raman spectroscopy, and AMS is presented that suggests the oxalate‐rich crusts were produced by metabolic activity of lichen or fungi on or near the surface of…
Analysis of the rock accretions in the lower pecos region of southwest texas
Calcium oxalate (whewellite) was found to be the primary component of crusts on limestone in the dry rock shelters throughout the Lower Pecos region of Texas. This material forms a translucent patina that covers the pictographs in this area. Evidence from analyses using SEM/EDS, FTIR, XRD, Raman spectroscopy, and AMS is presented that suggests the oxalate‐rich crusts were produced by metabolic activity of lichen or fungi on or near the surface of…
Origin of the Whewellite-Rich Rock Crust in the Lower Pecos Region of Southwest Texas and Its Significance to Paleoclimate Reconstructions
A calcium oxalate (whewellite)-rich crust occurs on exposed limestone surfaces in dry rock and open air shelters in the Lower Pecos region of southwest Texas. The crust, which also contains gypsum and clay, formed over silica-rich limestone during the Holocene. SEM and optical photomicrographs reveal similarities between whewellite microstructures and the lichen Aspicilia calcarea. This desert lichen is known to produce calcium oxalate, and has b…
A paleoclimate reconstruction for southwestern Texas using oxalate residue from lichen as a paleoclimate proxy
Geology and Paleoclimatology Research (3 works) · Lichen (3 works) · Chemistry (2 works) · Climate change (2 works) · Geochemistry (2 works) · Geology (2 works) · Holocene (2 works) · Lichen and fungal ecology (2 works) · Oceanography (2 works) · Paleoclimatology (2 works)