Sheela Kusumgar
Dados Biográficos
| ID | 1344664 |
|---|---|
| NOME | Sheela Kusumgar |
| PRENOMES | Sheela |
| SOBRENOME | Kusumgar |
| ASSINATURA | KUSUMGAR S |
| AFILIAÇÕES | Physical Research Laboratory |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 25 |
| TOTAL DE CITAÇÕES | 53 |
| TOTAL COMO AUTOR | 25 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1966 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 1997 |
| ÍNDICE H | 3 |
Conference Participants
From the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997
Holocene Paleoenvironmental Changes in the Lower Mahi Basin, Western India
Evidence of paleoenvironmental changes during the Holocene from the Lower Mahi basin of Western India have been documented. The unpaired S 2 surface all along the estuarine zone of the Mahi basin has been identified as an uplifted marine terrace. The terraces have preserved in their lithosections fairly distinct horizons of grayish brown clays rich in marine microfauna. The intervening silty-sand horizons are indicative of freshwater origin. The …
C Laboratories
This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries
A Comparative Study of Monsoonal and Non-Monsoonal Himalayan Lakes, India
Sedimentological, mineral magnetic and carbon isotopic studies on cores from Mansar Lake in the Jammu area provide paleomonsoonal history dating back to 580 bc. From ca. 580 bc to ad 300, the region experienced precipitation similar to the present, whereas from ad 300 to 1400, the monsoon was relatively subdued. A small excursion ca. ad 1100 suggests an effect of medieval warming. Studies in the Kumaon region did not provide a proper precipitatio…
Cist burials of the Kumaun Himalayas
In the Kumaun region of Uttar Pradesh, India, on the southern slopes of the Himalaya are cist burials, as well as megalithic monuments. Radiocarbon dates from the cists now hint at their going back to the 3rd millennium BC, and linguistic affinities would associate them with early Indo-European migrations into the western and central Himalaya regions
Participants
From the 14th International Radiocarbon Conference held in Tucson, AZ, May 20-24, 1991
Lake Sediments from the Kashmir Himalayas
We have measured 14 C, 210 Pb and 137 Cs profiles in two representative cores from Manasbal Lake, Kashmir, India. The sedimentation rate derived from 210 Pb and 137 Cs in the upper part of the core is in the range of 3.4 to 5.5 mm yr −1 . In contrast, 14 C ages show an inversion at depths >20 cm. These results are attributed to the erosion of the ubiquitous 10–20-m-thick loess mantle, based on the similarity of 14 C ages of the inversion layer in…
Physical Research Laboratory Radiocarbon Date List VI
We present here dates for archaeological and geological samples. The dates are based on τ 1/2 = 5568 years, using 1950 as the base year. The modern standard was 95% of activity of NBS oxalic acid. Samples were pretreated, prepared by methane synthesis and counted in a proportional counter. The detailed procedure has been described earlier (Agrawal, Gupta & Kusumgar 1971). We reported minor changes in previous date lists. Quoted errors are based o…
Radiocarbon Chronology and Magnetic Susceptibility Variation in Kumaon Lake Sediments
This study was carried out to determine time controls of erosion and sedimentation in the catchment area and lakes of the Naini Tal district in the Kumaon Himalayas. We present here our preliminary data from five lakes, Beon Tal, Garud Tal, Sukha Tal, Bhim Tal and Kamal Tal (Naukuchia Tal). A number of 14 C dates are now available to estimate the sedimentation rate of the five lakes and magnetic susceptibility (x L ; x fd ) variation to determine…
Palaeosols within Loess
The 14 C dates of Kashmir loess-palaeosols form five clusters. The dates, mineral magnetic, stable isotopic, and pollen data help decipher major climatic oscillations as distinct from the minor ones
Physical Research Laboratory Radiocarbon Date List V
We report here dates on archaeologic and geologic samples. The samples were counted as methane in gas proportional counters. The techniques used have been described earlier (R, 1971, v 13, p 442–449). Dates are expressed in years BP, taking AD 1950 as the reference year. Modern standard was NBS oxalic acid. Quoted errors are based on counting statistics alone and are equivalent to ±1 standard deviation for samples younger than 10,000 years and ± …
Physical Research Laboratory Radiocarbon Date List IV
The dates presented below are from some important archaeologic and Quaternary sites. All the dates are in years bp, based on τ1⁄2 = 5568 years. When converting archaeologic dates into the ad/bc scale, 1950 should be used as the base year. The dates are not corrected for 13 C fractionation. All the dates older than 10,000 years have been given with 2σ errors
Studies On the Loess Deposits of the Kashmir Valley and 14 C Dating
The loessic deposits along with their palaeosols of the Kashmir Valley have been 14 C dated using both organic and carbonate fractions. The 14 C dates on both the fractions show good concordance. The 14 C dates indicate that the last deglaciation in Kashmir (34° N) already started CA 18,000 ± 1000 BP at CA 1600m and CA 15,000 BP at CA 3000m altitude and thus support the recent global evidence of deglaciation having started several millennia befor…
Physical Research Laboratory Radiocarbon Date List III
Presented below are dates from some important archaeologic and Quaternary sites. All dates are based on τ 1⁄2 = 5568 yr; to convert the radiocarbon dates for archaeologic samples into ad/bc scale, 1950 has been used as base as per the resolution passed at the Ninth International Radiocarbon Conference, San Diego, 1976. The dates are not corrected for 13 C fractionation. All the dates older than 10,000 yr have been given with 2σ errors. Due to unc…
Chronology of Indian prehistory from the Mesolithic period to the Iron Age
Physical Research Laboratory Radiocarbon Date List II
Presented below are dates from some important archaeologic and Quaternary sites. For the first time, a large number of dates have been reported here on the eustatic changes on the Eastern Indian coast. All dates are based on τ 1/2 — 5568 yr; to convert the radiocarbon dates for archaeological samples into ad/bc scale, 1950 has been used as base year as per resolution passed at the Ninth International Radiocarbon Conference, San Diego, 1976. The d…
Physical Research Laboratory Radiocarbon Date List I
As the Radiocarbon Lab of the Tata Institute, Bombay, has now been shifted to the Physical Research Laboratory (PRL), Ahmedabad, our new date lists will be termed as above and the samples will be given PRL numbers instead of the former TF. All the pending TF samples were given new PRL numbers
Tata Institute Radiocarbon Date List XI
This is the last installment of 14 C dates done at the Tata Institute; the lab has now shifted to the Physical Research Laboratory, Navarangpura, Ahmedabad-380 009, India
Tata Institute Radiocarbon Date List X
In this date list we present dates from some very important archaeologic and Quaternary sites. For the first time the temporal spread of the Neolithic cultures of Bihar and the transformation of the Harappa culture in Gujarat has been dated. Some of the sites of controversial antiquity in Pakistan and India also have now been unambiguously dated
Tata Institute Radiocarbon Date List IX
The C 14 dates given below are in years b . p . calculated on the basis of τ 1/2 = 5568 years. For converting to a . d ./ b . c scale, 1950 was used as reference year. Ninety-five per cent activity of NBS oxalic acid was used as a modern standard
Tata Institute Radiocarbon Date List VIII
Given below are the dates of archaeologic and Quaternary samples measured by the proportional counting of methane gas. Details of the techniques used were published earlier (Agrawal et al. , 1965)
Tata Institute Radiocarbon Date List VI
This date list is comprised of archaeologic and geophysical samples. The latter are in continuation of our investigations of bomb-produced radiocarbon in atmospheric carbon dioxide reported in Tata V. We continue to count samples in the form of methane; the techniques used have been described elsewhere (Agrawal et al. , 1965)
Tata Institute Radiocarbon Date List VII
We continue to give dates based on the half-life of 5568 years according to the decision of the Sixth Pullman Conference (Internatl. Conf., Pullman, 1965). The year 1950 has been used as a reference year for converting the dates to A.D./B.C. scale. A value corresponding to 95% net counting rate of the NBS oxalic acid has been used as the modern reference standard
Tata Institute Radiocarbon Date List V
The C 14 dates presented here were obtained by counting methane, using the technique described earlier (Agrawal et al. , 1965a). In accordance with the decision of the Sixth Pullman Conference (Internat. Gonf., Pullman, 1965) and the editors’ advice we continue to give dates based on τ 1/2 = 5568 years. For converting dates to A.D./B.C. scale, 1950 has been used as reference year. Ninety-five per cent activity of N.B.S. oxalic acid has been used …
Tata Institute Radiocarbon Date List IV
All measurements reported in the previous date lists (Kusumgar et al. , 1963a; Agrawal et al. , 1964 and 1965a) were based on acetylene counting. Since September 1964 we have changed over to methane counting and all dates presented here are based on this method. Methane counting offers certain advantages over acetylene, e.g., (1) rapid synthesis, (2) the non-explosive nature of gas, (3) the synthesized gas is radon-free. The disadvantage of havin…
Tata Institute Radiocarbon Date List IX
The C 14 dates given below are in years b . p . calculated on the basis of τ 1/2 = 5568 years. For converting to a . d ./ b . c scale, 1950 was used as reference year. Ninety-five per cent activity of NBS oxalic acid was used as a modern standard
Tata Institute Radiocarbon Date List V
The C 14 dates presented here were obtained by counting methane, using the technique described earlier (Agrawal et al. , 1965a). In accordance with the decision of the Sixth Pullman Conference (Internat. Gonf., Pullman, 1965) and the editors’ advice we continue to give dates based on τ 1/2 = 5568 years. For converting dates to A.D./B.C. scale, 1950 has been used as reference year. Ninety-five per cent activity of N.B.S. oxalic acid has been used …
Tata Institute Radiocarbon Date List IV
All measurements reported in the previous date lists (Kusumgar et al. , 1963a; Agrawal et al. , 1964 and 1965a) were based on acetylene counting. Since September 1964 we have changed over to methane counting and all dates presented here are based on this method. Methane counting offers certain advantages over acetylene, e.g., (1) rapid synthesis, (2) the non-explosive nature of gas, (3) the synthesized gas is radon-free. The disadvantage of havin…
Cist burials of the Kumaun Himalayas
In the Kumaun region of Uttar Pradesh, India, on the southern slopes of the Himalaya are cist burials, as well as megalithic monuments. Radiocarbon dates from the cists now hint at their going back to the 3rd millennium BC, and linguistic affinities would associate them with early Indo-European migrations into the western and central Himalaya regions
Lake Sediments from the Kashmir Himalayas
We have measured 14 C, 210 Pb and 137 Cs profiles in two representative cores from Manasbal Lake, Kashmir, India. The sedimentation rate derived from 210 Pb and 137 Cs in the upper part of the core is in the range of 3.4 to 5.5 mm yr −1 . In contrast, 14 C ages show an inversion at depths >20 cm. These results are attributed to the erosion of the ubiquitous 10–20-m-thick loess mantle, based on the similarity of 14 C ages of the inversion layer in…
Studies On the Loess Deposits of the Kashmir Valley and 14 C Dating
The loessic deposits along with their palaeosols of the Kashmir Valley have been 14 C dated using both organic and carbonate fractions. The 14 C dates on both the fractions show good concordance. The 14 C dates indicate that the last deglaciation in Kashmir (34° N) already started CA 18,000 ± 1000 BP at CA 1600m and CA 15,000 BP at CA 3000m altitude and thus support the recent global evidence of deglaciation having started several millennia befor…
Tata Institute Radiocarbon Date List XI
This is the last installment of 14 C dates done at the Tata Institute; the lab has now shifted to the Physical Research Laboratory, Navarangpura, Ahmedabad-380 009, India
Tata Institute Radiocarbon Date List X
In this date list we present dates from some very important archaeologic and Quaternary sites. For the first time the temporal spread of the Neolithic cultures of Bihar and the transformation of the Harappa culture in Gujarat has been dated. Some of the sites of controversial antiquity in Pakistan and India also have now been unambiguously dated
Palaeosols within Loess
The 14 C dates of Kashmir loess-palaeosols form five clusters. The dates, mineral magnetic, stable isotopic, and pollen data help decipher major climatic oscillations as distinct from the minor ones
Physical Research Laboratory Radiocarbon Date List V
We report here dates on archaeologic and geologic samples. The samples were counted as methane in gas proportional counters. The techniques used have been described earlier (R, 1971, v 13, p 442–449). Dates are expressed in years BP, taking AD 1950 as the reference year. Modern standard was NBS oxalic acid. Quoted errors are based on counting statistics alone and are equivalent to ±1 standard deviation for samples younger than 10,000 years and ± …
Conference Participants
From the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997
Physical Research Laboratory Radiocarbon Date List VI
We present here dates for archaeological and geological samples. The dates are based on τ 1/2 = 5568 years, using 1950 as the base year. The modern standard was 95% of activity of NBS oxalic acid. Samples were pretreated, prepared by methane synthesis and counted in a proportional counter. The detailed procedure has been described earlier (Agrawal, Gupta & Kusumgar 1971). We reported minor changes in previous date lists. Quoted errors are based o…
Radiocarbon Chronology and Magnetic Susceptibility Variation in Kumaon Lake Sediments
This study was carried out to determine time controls of erosion and sedimentation in the catchment area and lakes of the Naini Tal district in the Kumaon Himalayas. We present here our preliminary data from five lakes, Beon Tal, Garud Tal, Sukha Tal, Bhim Tal and Kamal Tal (Naukuchia Tal). A number of 14 C dates are now available to estimate the sedimentation rate of the five lakes and magnetic susceptibility (x L ; x fd ) variation to determine…
Chronology of Indian prehistory from the Mesolithic period to the Iron Age
Physical Research Laboratory Radiocarbon Date List I
As the Radiocarbon Lab of the Tata Institute, Bombay, has now been shifted to the Physical Research Laboratory (PRL), Ahmedabad, our new date lists will be termed as above and the samples will be given PRL numbers instead of the former TF. All the pending TF samples were given new PRL numbers
Tata Institute Radiocarbon Date List VI
This date list is comprised of archaeologic and geophysical samples. The latter are in continuation of our investigations of bomb-produced radiocarbon in atmospheric carbon dioxide reported in Tata V. We continue to count samples in the form of methane; the techniques used have been described elsewhere (Agrawal et al. , 1965)
Tata Institute Radiocarbon Date List VII
We continue to give dates based on the half-life of 5568 years according to the decision of the Sixth Pullman Conference (Internatl. Conf., Pullman, 1965). The year 1950 has been used as a reference year for converting the dates to A.D./B.C. scale. A value corresponding to 95% net counting rate of the NBS oxalic acid has been used as the modern reference standard
Tata Institute Radiocarbon Date List IV
All measurements reported in the previous date lists (Kusumgar et al. , 1963a; Agrawal et al. , 1964 and 1965a) were based on acetylene counting. Since September 1964 we have changed over to methane counting and all dates presented here are based on this method. Methane counting offers certain advantages over acetylene, e.g., (1) rapid synthesis, (2) the non-explosive nature of gas, (3) the synthesized gas is radon-free. The disadvantage of havin…
Tata Institute Radiocarbon Date List V
The C 14 dates presented here were obtained by counting methane, using the technique described earlier (Agrawal et al. , 1965a). In accordance with the decision of the Sixth Pullman Conference (Internat. Gonf., Pullman, 1965) and the editors’ advice we continue to give dates based on τ 1/2 = 5568 years. For converting dates to A.D./B.C. scale, 1950 has been used as reference year. Ninety-five per cent activity of N.B.S. oxalic acid has been used …
Tata Institute Radiocarbon Date List VI
This date list is comprised of archaeologic and geophysical samples. The latter are in continuation of our investigations of bomb-produced radiocarbon in atmospheric carbon dioxide reported in Tata V. We continue to count samples in the form of methane; the techniques used have been described elsewhere (Agrawal et al. , 1965)
Tata Institute Radiocarbon Date List VII
We continue to give dates based on the half-life of 5568 years according to the decision of the Sixth Pullman Conference (Internatl. Conf., Pullman, 1965). The year 1950 has been used as a reference year for converting the dates to A.D./B.C. scale. A value corresponding to 95% net counting rate of the NBS oxalic acid has been used as the modern reference standard
Tata Institute Radiocarbon Date List IX
The C 14 dates given below are in years b . p . calculated on the basis of τ 1/2 = 5568 years. For converting to a . d ./ b . c scale, 1950 was used as reference year. Ninety-five per cent activity of NBS oxalic acid was used as a modern standard
Tata Institute Radiocarbon Date List VIII
Given below are the dates of archaeologic and Quaternary samples measured by the proportional counting of methane gas. Details of the techniques used were published earlier (Agrawal et al. , 1965)
Tata Institute Radiocarbon Date List X
In this date list we present dates from some very important archaeologic and Quaternary sites. For the first time the temporal spread of the Neolithic cultures of Bihar and the transformation of the Harappa culture in Gujarat has been dated. Some of the sites of controversial antiquity in Pakistan and India also have now been unambiguously dated
Tata Institute Radiocarbon Date List XI
This is the last installment of 14 C dates done at the Tata Institute; the lab has now shifted to the Physical Research Laboratory, Navarangpura, Ahmedabad-380 009, India
Physical Research Laboratory Radiocarbon Date List I
As the Radiocarbon Lab of the Tata Institute, Bombay, has now been shifted to the Physical Research Laboratory (PRL), Ahmedabad, our new date lists will be termed as above and the samples will be given PRL numbers instead of the former TF. All the pending TF samples were given new PRL numbers
Physical Research Laboratory Radiocarbon Date List II
Presented below are dates from some important archaeologic and Quaternary sites. For the first time, a large number of dates have been reported here on the eustatic changes on the Eastern Indian coast. All dates are based on τ 1/2 — 5568 yr; to convert the radiocarbon dates for archaeological samples into ad/bc scale, 1950 has been used as base year as per resolution passed at the Ninth International Radiocarbon Conference, San Diego, 1976. The d…
Physical Research Laboratory Radiocarbon Date List III
Presented below are dates from some important archaeologic and Quaternary sites. All dates are based on τ 1⁄2 = 5568 yr; to convert the radiocarbon dates for archaeologic samples into ad/bc scale, 1950 has been used as base as per the resolution passed at the Ninth International Radiocarbon Conference, San Diego, 1976. The dates are not corrected for 13 C fractionation. All the dates older than 10,000 yr have been given with 2σ errors. Due to unc…
Chronology of Indian prehistory from the Mesolithic period to the Iron Age
Studies On the Loess Deposits of the Kashmir Valley and 14 C Dating
The loessic deposits along with their palaeosols of the Kashmir Valley have been 14 C dated using both organic and carbonate fractions. The 14 C dates on both the fractions show good concordance. The 14 C dates indicate that the last deglaciation in Kashmir (34° N) already started CA 18,000 ± 1000 BP at CA 1600m and CA 15,000 BP at CA 3000m altitude and thus support the recent global evidence of deglaciation having started several millennia befor…
Physical Research Laboratory Radiocarbon Date List IV
The dates presented below are from some important archaeologic and Quaternary sites. All the dates are in years bp, based on τ1⁄2 = 5568 years. When converting archaeologic dates into the ad/bc scale, 1950 should be used as the base year. The dates are not corrected for 13 C fractionation. All the dates older than 10,000 years have been given with 2σ errors
Physical Research Laboratory Radiocarbon Date List V
We report here dates on archaeologic and geologic samples. The samples were counted as methane in gas proportional counters. The techniques used have been described earlier (R, 1971, v 13, p 442–449). Dates are expressed in years BP, taking AD 1950 as the reference year. Modern standard was NBS oxalic acid. Quoted errors are based on counting statistics alone and are equivalent to ±1 standard deviation for samples younger than 10,000 years and ± …
Palaeosols within Loess
The 14 C dates of Kashmir loess-palaeosols form five clusters. The dates, mineral magnetic, stable isotopic, and pollen data help decipher major climatic oscillations as distinct from the minor ones
Radiocarbon Chronology and Magnetic Susceptibility Variation in Kumaon Lake Sediments
This study was carried out to determine time controls of erosion and sedimentation in the catchment area and lakes of the Naini Tal district in the Kumaon Himalayas. We present here our preliminary data from five lakes, Beon Tal, Garud Tal, Sukha Tal, Bhim Tal and Kamal Tal (Naukuchia Tal). A number of 14 C dates are now available to estimate the sedimentation rate of the five lakes and magnetic susceptibility (x L ; x fd ) variation to determine…
Physical Research Laboratory Radiocarbon Date List VI
We present here dates for archaeological and geological samples. The dates are based on τ 1/2 = 5568 years, using 1950 as the base year. The modern standard was 95% of activity of NBS oxalic acid. Samples were pretreated, prepared by methane synthesis and counted in a proportional counter. The detailed procedure has been described earlier (Agrawal, Gupta & Kusumgar 1971). We reported minor changes in previous date lists. Quoted errors are based o…
Participants
From the 14th International Radiocarbon Conference held in Tucson, AZ, May 20-24, 1991
Lake Sediments from the Kashmir Himalayas
We have measured 14 C, 210 Pb and 137 Cs profiles in two representative cores from Manasbal Lake, Kashmir, India. The sedimentation rate derived from 210 Pb and 137 Cs in the upper part of the core is in the range of 3.4 to 5.5 mm yr −1 . In contrast, 14 C ages show an inversion at depths >20 cm. These results are attributed to the erosion of the ubiquitous 10–20-m-thick loess mantle, based on the similarity of 14 C ages of the inversion layer in…
A Comparative Study of Monsoonal and Non-Monsoonal Himalayan Lakes, India
Sedimentological, mineral magnetic and carbon isotopic studies on cores from Mansar Lake in the Jammu area provide paleomonsoonal history dating back to 580 bc. From ca. 580 bc to ad 300, the region experienced precipitation similar to the present, whereas from ad 300 to 1400, the monsoon was relatively subdued. A small excursion ca. ad 1100 suggests an effect of medieval warming. Studies in the Kumaon region did not provide a proper precipitatio…
Cist burials of the Kumaun Himalayas
In the Kumaun region of Uttar Pradesh, India, on the southern slopes of the Himalaya are cist burials, as well as megalithic monuments. Radiocarbon dates from the cists now hint at their going back to the 3rd millennium BC, and linguistic affinities would associate them with early Indo-European migrations into the western and central Himalaya regions
C Laboratories
This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries
Conference Participants
From the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997
Holocene Paleoenvironmental Changes in the Lower Mahi Basin, Western India
Evidence of paleoenvironmental changes during the Holocene from the Lower Mahi basin of Western India have been documented. The unpaired S 2 surface all along the estuarine zone of the Mahi basin has been identified as an uplifted marine terrace. The terraces have preserved in their lithosections fairly distinct horizons of grayish brown clays rich in marine microfauna. The intervening silty-sand horizons are indicative of freshwater origin. The …
Radiocarbon dating (24 obras) · Geology (23 obras) · Archaeology (18 obras) · Geography (16 obras) · Paleontology (16 obras) · Archaeology and ancient environmental studies (10 obras) · Chemistry (10 obras) · Geochemistry (10 obras) · Geology and Paleoclimatology Research (9 obras) · Geochronology (8 obras)