Use of carbon isotopes in paleosols as an indicator of the P(CO2) of the paleoatmosphere
- 21 September 1992
- journal article
- Published by American Geophysical Union (AGU) in Global Biogeochemical Cycles
- Vol. 6 (3) , 307-314
- https://doi.org/10.1029/92gb01102
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.This publication has 27 references indexed in Scilit:
- The stable isotope geochemistry of CaCO3 on the Tanana River floodplain of interior Alaska, U.S.A.: Composition and mechanisms of formationPublished by Elsevier ,2004
- Stable carbon isotope ratios and the existence of a gas phase in the evolution of carbonate ground watersPublished by Elsevier ,2003
- Lower Eocene alluvial paleosols (Willwood Formation, Northwest Wyoming, U.S.A.) and their significance for paleoecology, paleoclimatology, and basin analysisPublished by Elsevier ,2003
- 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
- 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
- Movement and turnover of soil organic matter as indicated by carbon isotope measurementsSoil Biology and Biochemistry, 1978