Use of carbon isotopes in paleosols as an indicator of the P(CO2) of the paleoatmosphere
Author:
- Thure E. CerlingTCThure E. Cerling
- 21 September 1992
- journal article
- Published by American Geophysical Union (AGU) in Global Biogeochemical Cycles
- Vol. 6 (3) , 307-314
Abstract
Measurements of carbon isotopic composition of coexisting paleosol organic matter and carbonate results in improved estimates of the paleo‐P(CO2) content of the paleoatmosphere. Measurements from Tertiary paleosols indicate that the levels of CO2 in the early Eocene, middle and late Miocene, and Pliocene were less than 1000 ppmV. Early Cretaceous levels of P(CO2) were significantly higher, of the order of 1500 to 3000 ppmV.Keywords
This publication has 26 references indexed in Scilit:
- Assessing the carbon dioxide content of ancient atmospheres using palaeocalcretes: theoretical and empirical contraintsJournal of the Geological Society, 1991
- Fossil soils, grasses, and carbon isotopes from Fort Ternan, Kenya: grassland or woodland?Journal of Human Evolution, 1991
- Carbon dioxide in the atmosphere; evidence from Cenozoic and Mesozoic PaleosolsAmerican Journal of Science, 1991
- A model for atmospheric CO 2 over Phanerozoic timeAmerican Journal of Science, 1991
- Atmospheric Carbon Dioxide Levels Over Phanerozoic TimeScience, 1990
- Profiles of CO2 concentration and δ13C values in tropical rain forests of the upper Rio Negro Basin, VenezuelaJournal of Tropical Ecology, 1986
- An Isotopic Study of Paleosol Carbonates from Olduvai GorgeQuaternary Research, 1986
- Lower Eocene alluvial paleosols (Willwood Formation, Northwest Wyoming, U.S.A.) and their significance for paleoecology, paleoclimatology, and basin analysisPalaeogeography, Palaeoclimatology, Palaeoecology, 1981
- Movement and turnover of soil organic matter as indicated by carbon isotope measurementsSoil Biology and Biochemistry, 1978
- Stable carbon isotope ratios and the existence of a gas phase in the evolution of carbonate ground watersGeochimica et Cosmochimica Acta, 1974