during photosynthesis and subsequently the heterotrophic organisms via the food chain.Various exchange processes between the atmosphere, the biosphere, and the hydrosphere result in a dynamic equilibrium between C abundance ratio by counting the isotopes themselves.High-resolution, well-dated calcareous dinoflagellate cyst and organic carbon records from a 58 kyr sediment core (M35003-4) located southeast of the island of Grenada show that rapid and pronounced changes in cyst association and...more High-resolution, well-dated calcareous dinoflagellate cyst and organic carbon records from a 58 kyr sediment core (M35003-4) located southeast of the island of Grenada show that rapid and pronounced changes in cyst association and accumulation and organic carbon deposition occurred, controlled by (1) a significant southward shift in the position of the North Equatorial Current during the last glacial period and the Younger Dryas cold interval and (2) rapid changes in local productivity in marine isotopic stage 3 that are associated with variations in Orinoco River nutrient discharge and coastal upwelling strength.Due to the fact that during physicochemical processes like evaporation the composition of stable isotopes changes, their composition can be used to reconstruct these processes or the environmental conditions in general.
The dataset also contains a further 478 non-radiocarbon ages. Jana Zech Laboratory Manager of the Stable Isotope Laboratory at the Department of Archaeology, Max Planck Institute for the Science of Human History Geologist specialisaing in compound specific stable isotope analysis of natural and anthropogenic sediments. OASIS and δIANA developers (Dietary Isotopic baseline for the Ancient North). Ricardo Fernandes Max Planck Institute for the Science of Human History. Thomas Larsen Leibniz-Laboratory for Radiometric Dating and Isotope Research (University of Kiel) Isotope ecologist specializing in reconstructing animal diets using compound specific isotope analysis. (2008a) Aust Arch 1: A database of 14C and luminescence ages from archaeological sites in the Australian Arid Zone. Eva Rosenstock Emmy-Noether group Li VES, Institute for Prehistoric Archaeology (Freie Universitt Berlin) Archaeologist utilizing large samples of proxy data (body height, isotopes, etc.) to enlighten prehistoric living conditions Email: Alisa Scheibner Emmy-Noether group Li VES, Institute of Prehistoric Archaeology (Freie Universitt Berlin) Archaeologist utilizing large samples of paleodietary data (stable isotopes, animal bones, residue analyses, diet-related pathologies, etc.) to analyze and compare prehistoric dietary habits.Mc Donald Institute for Archaeological Research (University of Cambridge) Physicist and archaeologist specializing in stable and radiometric isotope analysis and Bayesian modelling. Yiming Wang Iso database coordinator and website manager Isotope geochemist specializing in using leaf wax biomarkers to reconstruct past hydrological and vegetation changes. Email: [email protected]: A 14C database for Southeast Europe and Anatolia (10,000–3000 cal BC). Email: [email protected] are an active research Group that focuses on the application of stable isotope methods to questions of past hominin (including human) and faunal diet, ecology, and environment.more An electrospray apparatus for deposition of organic molecules on surfaces in ultrahigh vacuum is presented.The kinetic energy at the impact and mass to charge ratio of deposited ions can be controlled by an electrostatic quadrupole deflector and an in-line quadrupole mass spectrometer.It combined a new 3 MV Tandetron accelerator mass spectrometer (AMS) system with the conventional Radiocarbon and Mass-Spectormetry Laboratories, started in 1962.