Salvatore Valastro
Biographic Data
| ID | 4977468 |
|---|---|
| NAME | Salvatore Valastro |
| GIVEN NAMES | Salvatore |
| FAMILY NAME | Valastro |
| SIGNATURE | VALASTRO S |
| AFFILIATIONS | Balcones Technologies (United States) |
| ORCID | 0000-0002-1297-4174 |
| VERIFIED | Yes |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 41 |
| AUTHOR COUNT | 18 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1976 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 4 |
Preventing lead leakage in perovskite solar cells with a sustainable titanium dioxide sponge
Temporal and environmental resolution of a buried loessal pedostratigraphic unit in Kansas and Nebraska
A late paleo-Indian/Early archaic water well in Mexico—Possible oldest water-Management feature in the new world
A filled prehistoric water well discovered at the village of San Marcos Necoxtla, Puebla, Mexico, may be the oldest directly dated water-management feature in the Americas. The ∼10 m stratigraphic section exposed at this remarkable site records 18,000+ yr of deposition, erosion, water-table and hydrochemical fluctuations, and ≥10,000 yr of continual occupation. Temporal control is afforded by a multicomponent cultural chronology and radiocarbon a…
Calcified microbial mats date prehistoric canals—Radiocarbon assay of organic extracts from travertine
A methodology for radiocarbon dating of calcified microbial mats has been developed and successfully applied in establishing a preliminary chronology for the prehistoric carbonate-encrusted canals of the Tehuacán Valley of Puebla, Mexico. In contrast to traditional carbonate dating techniques, this method focuses on the organic carbon component of the calcareous sediments. This method is based on the assumptions that (1) the carbon being dated is…
Grassland Vegetation in the Southern Great Plains during the Last Glacial Maximum
New pollen records from White Lake in the Southern High Plains and from Friesenhahn Cave on the southeastern Edwards Plateau of Texas indicate that the glacial-age vegetation of the southern Great Plains was a grassland. The High Plains was a treeless Artemisia grassland and the Edwards Plateau, at the south edge of the Great Plains, was a grassland with pinyon pines and deciduous trees in canyons and riparian habitats. The glacial-age grasslands…
Evolution of landscapes on the double mountain fork of the brazos river, West Texas
The Double Mountain Fork of the Brazos River is an ephemeral stream that flows across the western Rolling Plains of West Texas. Intensive pedestrian archaeological survey, covering some 8700 acres of the drainage, produced a site inventory with a general paucity of identifiable Paleoindian and Early to Middle Archaic components, whereas Late Archaic and Late Prehistoric sites were widespread and found in a diversity of landscape positions. Geoarc…
Quaternary stratigraphy and geoarchaeology of the colorado and concho rivers, west texas
Geoarchaeological investigations in an area surrounding the confluence of the upper Colorado and Concho Rivers, Edwards Plateau of West Texas, have produced a detailed landscape evolution model which provides a framework for discussion of the influences of geomorphic processes on the development, preservation, and visibility of the archaeological record. Field mapping within the study area has differentiated six allostrati‐graphic units of fluvia…
Response of the Pedernales River of Central Texas to Late Holocene Climatic Change
Geomorphological investigations of modern fluvial systems are based on the premise that stream channels develop an equilibrium morphology that represents an accommodation to the relationship between the independent variables of discharge and sediment supply. Long-term changes in this relationship, often due to climatic change, result in morphological and sedimentary adjustments by the fluvial system that are commonly recorded in alluvial sediment…
Pleistocene Glaciation of Volcano Ajusco, Central Mexico, and Comparison with the Standard Mexican Glacial Sequence
Three Pleistocene glaciations and two Holocene Neoglacial advances occurred on volcano Ajusco in central Mexico. Lateral moraines of the oldest glaciation, the Marqués, above 3250 m are made of light-gray indurated till and are extensively modified by erosion. Below 3200 m the till is dark red, decomposed, and buried beneath volcanic colluvium and tephra. Very strongly to strongly developed soil profiles (Inceptisols) have formed in the Marqués t…
Holocene Vegetational History of the Kootenai River Valley, Montana
Pollen records in the Kootenai and Fisher River drainages in western Montana reveal a fivezone sequence of Holocene vegetation change. Deposition of Glacier Peak Ash-Layer G (ca. 10,540 ± 660 yr B.P.) in the lowermost sediments (clay intermixed with pebbles) at Tepee Lake gives a minimum date for the initiation of sedimentation. Initial vegetation on the newly deglaciated terrain was dominated by Pinus (probably white bark pine) with small amount…
Carbon-14 Chronology of Mortar from Excavations in the Medieval Church of Saint-Bénigne, Dijon, France
This study indicates, as the recent Carbon-14 analysis of lime mortar from the Episcopal Basilica at Stobi, Yugoslavia, that Carbon-14 mortar analysis is a valuable tool for dating successive phases of construction in historical monuments. At the Gothic church of Saint-Bénigne in Dijon, France, Carbon-14 analysis of lime mortar verified the archaeological discovery of the remains of four documented churches beneath the present building. Most impo…
Holocene Vegetation History of the Okanogan Valley, Washington
Haploxylon pine(s) and Artemisia dominated the initial vegetation in front of the receding Okanogan Lobe until ca. 10,000 yr B.P., as revealed by two pollen records in north-central Washington. After 10,000 yr B.P. the macroclimate became warmer throughout the Okanogan drainage as diploxylon pines and Artemisia increased. The Mount Mazama eruption at ca. 6700 yr B.P. is recorded as two stratigraphically separate and petrographically distinct teph…
Dating of Lime Mortar by 14 C
Reexamination of Postglacial Vegetation History in Northern Idaho
Hager Pond, a mire in northern Idaho, reveals at least five pollen zones since sediments formed after the last recession of continental ice (>9500 yr BP). Zone I (>9500-8300 yr BP) consists mainly of diploxylon pine, plus low percentages of Abies, Artemisia , and Picea . SEM examination of conifer pollen at selected levels in the zone reveals that Pinus albicaulis, P. monticola , and P. contorta are present in unknown proportions. The zone resemb…
Radiocarbon Dating and the George C. Davis Site, Texas
Seventy-nine radiocarbon samples were assayed from the George C. Davis Site, a prehistoric Caddoan settlement in the central portion of east Texas. Statistical analysis of the dates convincingly establishes the age of the site as extending from about 780 A.C. to 1260 A.C. and enables us to place the cultural remains into three temporal periods. These dates also provide specific and useful examples for improving the application of radiocarbon dati…
Successful Technique for Dating of Lime Mortar by Carbon-14
Lime mortar can be dated successfully by the following important modificationsin technique: 1) crushing and sieving to remove inert aggregate; 2) acidization of live mortar and taking only the first fraction of gas evolved, that fraction which has least contamination; 3) correction of results by σC13 and dendrochronology. We have applied this technique to buildings in Stobi with generally successful results
Perspectives
Successful Technique for Dating of Lime Mortar by Carbon-14
Successful Technique for Dating of Lime Mortar by Carbon-14
Successful Technique for Dating of Lime Mortar by Carbon-14
Lime mortar can be dated successfully by the following important modificationsin technique: 1) crushing and sieving to remove inert aggregate; 2) acidization of live mortar and taking only the first fraction of gas evolved, that fraction which has least contamination; 3) correction of results by σC13 and dendrochronology. We have applied this technique to buildings in Stobi with generally successful results
Radiocarbon Dating and the George C. Davis Site, Texas
Seventy-nine radiocarbon samples were assayed from the George C. Davis Site, a prehistoric Caddoan settlement in the central portion of east Texas. Statistical analysis of the dates convincingly establishes the age of the site as extending from about 780 A.C. to 1260 A.C. and enables us to place the cultural remains into three temporal periods. These dates also provide specific and useful examples for improving the application of radiocarbon dati…
Quaternary stratigraphy and geoarchaeology of the colorado and concho rivers, west texas
Geoarchaeological investigations in an area surrounding the confluence of the upper Colorado and Concho Rivers, Edwards Plateau of West Texas, have produced a detailed landscape evolution model which provides a framework for discussion of the influences of geomorphic processes on the development, preservation, and visibility of the archaeological record. Field mapping within the study area has differentiated six allostrati‐graphic units of fluvia…
Carbon-14 Chronology of Mortar from Excavations in the Medieval Church of Saint-Bénigne, Dijon, France
This study indicates, as the recent Carbon-14 analysis of lime mortar from the Episcopal Basilica at Stobi, Yugoslavia, that Carbon-14 mortar analysis is a valuable tool for dating successive phases of construction in historical monuments. At the Gothic church of Saint-Bénigne in Dijon, France, Carbon-14 analysis of lime mortar verified the archaeological discovery of the remains of four documented churches beneath the present building. Most impo…
Calcified microbial mats date prehistoric canals—Radiocarbon assay of organic extracts from travertine
A methodology for radiocarbon dating of calcified microbial mats has been developed and successfully applied in establishing a preliminary chronology for the prehistoric carbonate-encrusted canals of the Tehuacán Valley of Puebla, Mexico. In contrast to traditional carbonate dating techniques, this method focuses on the organic carbon component of the calcareous sediments. This method is based on the assumptions that (1) the carbon being dated is…
Successful Technique for Dating of Lime Mortar by Carbon-14
Lime mortar can be dated successfully by the following important modificationsin technique: 1) crushing and sieving to remove inert aggregate; 2) acidization of live mortar and taking only the first fraction of gas evolved, that fraction which has least contamination; 3) correction of results by σC13 and dendrochronology. We have applied this technique to buildings in Stobi with generally successful results
Perspectives
Successful Technique for Dating of Lime Mortar by Carbon-14
Radiocarbon Dating and the George C. Davis Site, Texas
Seventy-nine radiocarbon samples were assayed from the George C. Davis Site, a prehistoric Caddoan settlement in the central portion of east Texas. Statistical analysis of the dates convincingly establishes the age of the site as extending from about 780 A.C. to 1260 A.C. and enables us to place the cultural remains into three temporal periods. These dates also provide specific and useful examples for improving the application of radiocarbon dati…
Reexamination of Postglacial Vegetation History in Northern Idaho
Hager Pond, a mire in northern Idaho, reveals at least five pollen zones since sediments formed after the last recession of continental ice (>9500 yr BP). Zone I (>9500-8300 yr BP) consists mainly of diploxylon pine, plus low percentages of Abies, Artemisia , and Picea . SEM examination of conifer pollen at selected levels in the zone reveals that Pinus albicaulis, P. monticola , and P. contorta are present in unknown proportions. The zone resemb…
Holocene Vegetation History of the Okanogan Valley, Washington
Haploxylon pine(s) and Artemisia dominated the initial vegetation in front of the receding Okanogan Lobe until ca. 10,000 yr B.P., as revealed by two pollen records in north-central Washington. After 10,000 yr B.P. the macroclimate became warmer throughout the Okanogan drainage as diploxylon pines and Artemisia increased. The Mount Mazama eruption at ca. 6700 yr B.P. is recorded as two stratigraphically separate and petrographically distinct teph…
Dating of Lime Mortar by 14 C
Carbon-14 Chronology of Mortar from Excavations in the Medieval Church of Saint-Bénigne, Dijon, France
This study indicates, as the recent Carbon-14 analysis of lime mortar from the Episcopal Basilica at Stobi, Yugoslavia, that Carbon-14 mortar analysis is a valuable tool for dating successive phases of construction in historical monuments. At the Gothic church of Saint-Bénigne in Dijon, France, Carbon-14 analysis of lime mortar verified the archaeological discovery of the remains of four documented churches beneath the present building. Most impo…
Holocene Vegetational History of the Kootenai River Valley, Montana
Pollen records in the Kootenai and Fisher River drainages in western Montana reveal a fivezone sequence of Holocene vegetation change. Deposition of Glacier Peak Ash-Layer G (ca. 10,540 ± 660 yr B.P.) in the lowermost sediments (clay intermixed with pebbles) at Tepee Lake gives a minimum date for the initiation of sedimentation. Initial vegetation on the newly deglaciated terrain was dominated by Pinus (probably white bark pine) with small amount…
Pleistocene Glaciation of Volcano Ajusco, Central Mexico, and Comparison with the Standard Mexican Glacial Sequence
Three Pleistocene glaciations and two Holocene Neoglacial advances occurred on volcano Ajusco in central Mexico. Lateral moraines of the oldest glaciation, the Marqués, above 3250 m are made of light-gray indurated till and are extensively modified by erosion. Below 3200 m the till is dark red, decomposed, and buried beneath volcanic colluvium and tephra. Very strongly to strongly developed soil profiles (Inceptisols) have formed in the Marqués t…
Response of the Pedernales River of Central Texas to Late Holocene Climatic Change
Geomorphological investigations of modern fluvial systems are based on the premise that stream channels develop an equilibrium morphology that represents an accommodation to the relationship between the independent variables of discharge and sediment supply. Long-term changes in this relationship, often due to climatic change, result in morphological and sedimentary adjustments by the fluvial system that are commonly recorded in alluvial sediment…
Evolution of landscapes on the double mountain fork of the brazos river, West Texas
The Double Mountain Fork of the Brazos River is an ephemeral stream that flows across the western Rolling Plains of West Texas. Intensive pedestrian archaeological survey, covering some 8700 acres of the drainage, produced a site inventory with a general paucity of identifiable Paleoindian and Early to Middle Archaic components, whereas Late Archaic and Late Prehistoric sites were widespread and found in a diversity of landscape positions. Geoarc…
Quaternary stratigraphy and geoarchaeology of the colorado and concho rivers, west texas
Geoarchaeological investigations in an area surrounding the confluence of the upper Colorado and Concho Rivers, Edwards Plateau of West Texas, have produced a detailed landscape evolution model which provides a framework for discussion of the influences of geomorphic processes on the development, preservation, and visibility of the archaeological record. Field mapping within the study area has differentiated six allostrati‐graphic units of fluvia…
Grassland Vegetation in the Southern Great Plains during the Last Glacial Maximum
New pollen records from White Lake in the Southern High Plains and from Friesenhahn Cave on the southeastern Edwards Plateau of Texas indicate that the glacial-age vegetation of the southern Great Plains was a grassland. The High Plains was a treeless Artemisia grassland and the Edwards Plateau, at the south edge of the Great Plains, was a grassland with pinyon pines and deciduous trees in canyons and riparian habitats. The glacial-age grasslands…
A late paleo-Indian/Early archaic water well in Mexico—Possible oldest water-Management feature in the new world
A filled prehistoric water well discovered at the village of San Marcos Necoxtla, Puebla, Mexico, may be the oldest directly dated water-management feature in the Americas. The ∼10 m stratigraphic section exposed at this remarkable site records 18,000+ yr of deposition, erosion, water-table and hydrochemical fluctuations, and ≥10,000 yr of continual occupation. Temporal control is afforded by a multicomponent cultural chronology and radiocarbon a…
Calcified microbial mats date prehistoric canals—Radiocarbon assay of organic extracts from travertine
A methodology for radiocarbon dating of calcified microbial mats has been developed and successfully applied in establishing a preliminary chronology for the prehistoric carbonate-encrusted canals of the Tehuacán Valley of Puebla, Mexico. In contrast to traditional carbonate dating techniques, this method focuses on the organic carbon component of the calcareous sediments. This method is based on the assumptions that (1) the carbon being dated is…
Temporal and environmental resolution of a buried loessal pedostratigraphic unit in Kansas and Nebraska
Preventing lead leakage in perovskite solar cells with a sustainable titanium dioxide sponge
Geography (12 works) · Archaeology (11 works) · Geology (11 works) · Geology (10 works) · Geology and Paleoclimatology Research (9 works) · Paleontology (8 works) · Paleontology (7 works) · Radiocarbon dating (7 works) · Holocene (6 works) · Archaeology and ancient environmental studies (5 works)