The 16th International Conference on Accelerator Mass Spectrometry

Session

Applications in Climate Studies

ACS

22 Oct 2024, 14:50

GRAND BALLROOM (宴会厅), 2nd Floor

Conveners

Applications in Climate Studies

• Hiroyuki Matsuzaki (The University of Tokyo)

Description

Paleoclimate, ocean and sea ice evolution, glaciations, and climate reconstruction using AMS methods.

113. Monthly and annual variations of 10Be fallout in the early 21st century recorded in a Greenland ice core (ACS-1)

Dr Kazuho Horiuchi

22/10/2024, 14:50

Applications in Climate Studies

Oral Presentation

Cosmogenic 10Be is produced by spallation reactions between galactic cosmic rays and nitrogen and oxygen atoms, mainly in the lower stratosphere and upper troposphere. Since the intensity of galactic cosmic rays is modulated by solar/geomagnetic fields, 10Be serves as a proxy for solar activity and the paleointensity of the Earth's magnetic field (Beer et al., 2012).

The 10Be produced is...

117. Post-glacial wildfire documents in the high mountains of Taiwan (ACS-2)

Fang-yu Li (National Chung Cheng University)

22/10/2024, 15:10

Applications in Climate Studies

Oral Presentation

Even with annual rainfall > 2000 mm, many wildfires in alpine coniferous forests were reported in the > 3000 m-high mountains of Taiwan (up to 3952 m). Most of these historic wildfires occurred in spring, the driest season in Taiwan, demonstrating their close relationship with climatic dryness. We have undertaken extensive geomorphic surveys in the Taiwan’s high mountains and found the...

137. Paleoenvironmental and climatic changes in Altai Krai of Russia during the past 1700 years: Insights from the sedimentary feature, elemental geochemistry and pollen record (ACS-3)

Eslam Mohamed Ali Mitwally, Prof. Hong-Chun Li (Department of Geosciences, National Taiwan University, Taipei 10617, Taiwan, ROC)

22/10/2024, 15:30

Applications in Climate Studies

Oral Presentation

A 64-cm long core from Zolotoe Lake (51°51'28.74''N, 80°15'59.16''E) located in the ribbon forest of the Kulundinsky plain of the West Siberian Lowland of Russia has been dated with AMS 14C dating on sediment total organic carbon (TOC) samples, and 210Pb and 137Cs dating. A clear sharp peak in the 137Cs profile corresponding to 1964 CE appeared at the 12-14 cm depth. The 210Pb profile...

157. Reliable radiocarbon dating through small snail shells (ACS-4)

Dr Yao Gu (Nanjing University)

22/10/2024, 15:50

Applications in Climate Studies

Oral Presentation

In late Quaternary loess-palaeosol deposits, snail shells are often the only radiocarbon dating material available for building a chronology. However, the reliability of radiocarbon dating different small snail shells remains an open question. Here, we collected different small snail shells from a loess-palaeosol sequence located in central China to test the radiocarbon ages of snail shells....

211. 81Kr dating with 1 kg of polar ice (ACS-5)

Prof. Wei Jiang (中国科学技术大学)

22/10/2024, 16:10

Applications in Climate Studies

Oral Presentation

81Kr is a cosmogenic isotope with half-life of 229 ka. Its dating range is 20-1500 ka, which covers many applications for polar ice. 81Kr can provide absolute, radiometric ages and do not rely on continuous stratigraphy. Thus it is complementary to conventional ice dating techniques and is particularly valuable for disturbed ice samples. 81Kr-dating on 200 kg blue ice samples from the Taylor...