TY - JOUR
T1 - The Sihailongwan Maar Lake, northeastern China as a candidate Global boundary Stratotype Section and Point for the Anthropocene series
AU - Han, Yongming
AU - Zhisheng, An
AU - Lei, Dewen
AU - Zhou, Weijian
AU - Zhang, Luyuan
AU - Zhao, Xue
AU - Yan, Dongna
AU - Arimoto, Richard
AU - Rose, Neil L.
AU - Roberts, Sarah L.
AU - Li, Li
AU - Tang, Yalan
AU - Liu, Xingqi
AU - Fu, Xuewu
AU - Schneider, Tobias
AU - Hou, Xiaolin
AU - Lan, Jianghu
AU - Tan, Liangcheng
AU - Liu, Xingxing
AU - Hu, Jing
AU - Cao, Yunning
AU - Liu, Weiguo
AU - Wu, Feng
AU - Wang, Tianli
AU - Qiang, Xiaoke
AU - Chen, Ning
AU - Cheng, Peng
AU - Hao, Yifei
AU - Wang, Qiyuan
AU - Chu, Guoqiang
AU - Guo, Meiling
AU - Han, Mei
AU - Tan, Zhihai
AU - Wei, Chong
AU - Dusek, Ulrike
N1 - Publisher Copyright:
© The Author(s) 2023.
PY - 2023/4
Y1 - 2023/4
N2 - Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake’s varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology for the site. Time series records of radioactive (239,240Pu, 129I and soot 14C), chemical (spheroidal carbonaceous particles, polycyclic aromatic hydrocarbons, soot, heavy metals, δ13C, etc.), physical (magnetic susceptibility and grayscale) and biological (environmental DNA) indicators all show rapid changes in the mid-20th century, coincident with clear lithological changes of the sediments. Statistical analyses of these proxies show a tipping point in 1954 CE. 239,240Pu activities follow a typical unimodal globally-distributed profile, and are proposed as the primary marker for the Anthropocene. A rapid increase in 239,240Pu activities at 88 mm depth in core SHLW21-Fr-13 (1953 CE) is synchronous with rapid changes of other anthropogenic proxies and the Great Acceleration, marking the onset of the Anthropocene. The results indicate that Sihailongwan Maar Lake is an ideal site for the Anthropocene GSSP.
AB - Sihailongwan Maar Lake, located in Northeast China, is a candidate Global boundary Stratotype Section and Point (GSSP) for demarcation of the Anthropocene. The lake’s varved sediments are formed by alternating allogenic atmospheric inputs and authigenic lake processes and store a record of environmental and human impacts at a continental-global scale. Varve counting and radiometric dating provided a precise annual-resolution sediment chronology for the site. Time series records of radioactive (239,240Pu, 129I and soot 14C), chemical (spheroidal carbonaceous particles, polycyclic aromatic hydrocarbons, soot, heavy metals, δ13C, etc.), physical (magnetic susceptibility and grayscale) and biological (environmental DNA) indicators all show rapid changes in the mid-20th century, coincident with clear lithological changes of the sediments. Statistical analyses of these proxies show a tipping point in 1954 CE. 239,240Pu activities follow a typical unimodal globally-distributed profile, and are proposed as the primary marker for the Anthropocene. A rapid increase in 239,240Pu activities at 88 mm depth in core SHLW21-Fr-13 (1953 CE) is synchronous with rapid changes of other anthropogenic proxies and the Great Acceleration, marking the onset of the Anthropocene. The results indicate that Sihailongwan Maar Lake is an ideal site for the Anthropocene GSSP.
KW - Anthropocene
KW - GSSP
KW - Sihailongwan Maar Lake
KW - artificial radioisotopes
KW - varve lamination
UR - https://www.scopus.com/pages/publications/85152917354
U2 - 10.1177/20530196231167019
DO - 10.1177/20530196231167019
M3 - 文章
AN - SCOPUS:85152917354
SN - 2053-0196
VL - 10
SP - 177
EP - 200
JO - Anthropocene Review
JF - Anthropocene Review
IS - 1
ER -