Lake Suigetsu varved sediment project: terrestrial radiocarbon calibration model and inter-regional comparison of climate changes
Lead Research Organisation:
Aberystwyth University
Department Name: Inst of Geography and Earth Sciences
Abstract
Long term records of atmospheric radiocarbon provide a wealth of information, both as records of carbon cycling in the environment and as a basis for all 14C dating. The Holocene atmospheric radiocarbon record is provided by tree rings and is considered to be (almost) robust. However, that of the period from 12,410 to c.26,000 BP is based on marine sediments which are influenced by the marine reservoir effect. Also, the corresponding information for the atmosphere for the period 26,000 to 50,000 BP is lacking. This project will establish a radiocarbon calibration model for the Late Pleistocene (10,000 / 50,000 BP) based on terrestrial material, mostly deciduous tree leaf fossils which are free from marine reservoir effects, recovered from the annually laminated lacustrine sediments of Lake Suigetsu, Japan. The project will also produce quantitatively reconstructed climate changes of the Monsoon regions for the last 150,000 yeas using high or ultra-high resolution pollen records. The profile will be established using tie-points such as geomagnetic excursions and tephra layers. The project will therefore contribute to international scientific endeavour in using radiocarbon-based information to determine the timing and rates of environmental changes, as well as understanding past changes in the global carbon cycle. The project will also contribute to hypothesis testing about the causal mechanisms of climate change, especially concerning the relative timing of D/O events in Asia, North Atlantic, Antarctica and many other marine and terrestrial records through the last glacial-interglacial cycle.
Organisations
People |
ORCID iD |
Henry Lamb (Principal Investigator) |
Publications
Cheddadi R
(2015)
A History of Human Impact on Moroccan Mountain Landscapes
in African Archaeological Review
Cohen A
(2022)
Reconstructing the Environmental Context of Human Origins in Eastern Africa Through Scientific Drilling
in Annual Review of Earth and Planetary Sciences
Blinkhorn J
(2021)
Explanations of variability in Middle Stone Age stone tool assemblage composition and raw material use in Eastern Africa
in Archaeological and Anthropological Sciences
Gil-Romera G
(2019)
Long-term fire resilience of the Ericaceous Belt, Bale Mountains, Ethiopia.
in Biology letters
Schaebitz F
(2021)
Hydroclimate changes in eastern Africa over the past 200,000 years may have influenced early human dispersal
in Communications Earth & Environment
Prave A
(2016)
Geology and geochronology of the Tana Basin, Ethiopia: LIP volcanism, super eruptions and Eocene-Oligocene environmental change
in Earth and Planetary Science Letters
Raper E
(2015)
Ecological conditions of ponds situated on blast furnace slag deposits located in South Gare Site of Special Scientific Interest (SSSI), Teesside, UK.
in Environmental geochemistry and health
Gebregiorgis D
(2021)
Modern Sedimentation and Authigenic Mineral Formation in the Chew Bahir Basin, Southern Ethiopia: Implications for Interpretation of Late Quaternary Paleoclimate Records
in Frontiers in Earth Science
Arnold G
(2021)
Advanced Hyperspectral Analysis of Sediment Core Samples from the Chew Bahir Basin, Ethiopian Rift, in the Spectral Range from 0.25 to 17 µm: Support for Climate Proxy Interpretation
in Frontiers in Earth Science
Martin-Jones C
(2017)
Recurrent explosive eruptions from a high-risk Main Ethiopian Rift volcano throughout the Holocene
in Geology
Grove M
(2015)
Climatic variability, plasticity, and dispersal: A case study from Lake Tana, Ethiopia.
in Journal of human evolution
Bittner L
(2020)
Revisiting afro-alpine Lake Garba Guracha in the Bale Mountains of Ethiopia: rationale, chronology, geochemistry, and paleoenvironmental implications
in Journal of Paleolimnology
Grove M
(2021)
Testing the Integrity of the Middle and Later Stone Age Cultural Taxonomic Division in Eastern Africa
in Journal of Paleolithic Archaeology
Loomis S
(2015)
Northeast African temperature variability since the Late Pleistocene
in Palaeogeography, Palaeoclimatology, Palaeoecology
Kossler A
(2011)
Onset and termination of the late-glacial climate reversal in the high-resolution diatom and sedimentary records from the annually laminated SG06 core from Lake Suigetsu, Japan
in Palaeogeography, Palaeoclimatology, Palaeoecology
Christopher Campisano
(2017)
The Hominin Sites and Paleolakes Drilling Project
in Paleoanthropology
Grove M
(2020)
Neural networks differentiate between Middle and Later Stone Age lithic assemblages in eastern Africa.
in PloS one
Kaboth-Bahr S
(2021)
Paleo-ENSO influence on African environments and early modern humans.
in Proceedings of the National Academy of Sciences of the United States of America
Marshall M
(2012)
A novel approach to varve counting using µXRF and X-radiography in combination with thin-section microscopy, applied to the Late Glacial chronology from Lake Suigetsu, Japan
in Quaternary Geochronology
Martin-Jones C
(2017)
Reprint of Glass compositions and tempo of post-17 ka eruptions from the Afar Triangle recorded in sediments from lakes Ashenge and Hayk, Ethiopia
in Quaternary Geochronology
Martin-Jones C
(2017)
Glass compositions and tempo of post-17 ka eruptions from the Afar Triangle recorded in sediments from lakes Ashenge and Hayk, Ethiopia
in Quaternary Geochronology
Schlolaut G
(2012)
An automated method for varve interpolation and its application to the Late Glacial chronology from Lake Suigetsu, Japan
in Quaternary Geochronology
Description | Extended the terrestrial radiocarbon calibration to 40,000 yrs ago |
Exploitation Route | In dating ancient organic materials with radiocabon |
Sectors | Environment,Culture, Heritage, Museums and Collections |
URL | http://www.suigetsu.org/embed.php?File= |
Description | Contribution to museum exhibits in Japan: major new varve museum at Wakasa, Japan |
First Year Of Impact | 2018 |
Sector | Environment,Culture, Heritage, Museums and Collections |
Impact Types | Cultural |