New evidence for enhanced cosmogenic isotope production rate in the atmosphere ≈37 kaBP from the Guliya ice core  

作　　者：L.G.Thompson E.Mosley-Thompson J.Cole-Dai M.E.Davis P.-N.Lin 

机构地区：[1]Hyrd Polar Research Center, Ohio State University , OH 45701, USA,Hyrd Polar Research Center, Ohio State University , OH 45701, USA,Hyrd Polar Research Center, Ohio State University , OH 45701, USA,Hyrd Polar Research Center, Ohio State University , OH 45701, USA,Hyrd Polar Research Center, Ohio State University , OH 45701, USA

出　　处：《Chinese Science Bulletin》1999年第17期1616-1620,共5页

摘　　要：A 36CI peak was found in the predicted section of Guliya ice core, from the Qinghai-Tibetan Plateau, at about 37 kaBP. This cannot be interpreted by means of changes in the accumulation rate, but by the enhanced cosmogenic isotope production rate in the atmosphere. Compared with the records of 10Be and 36CI in the other regions, the peaks of the cosmogenic isotopes are global and can be considered as time marks. An intriguing fact is that the peaks coincided with cold periods.A36Cl peak was found in the predicted section of Guliya ice core, from the Qinghai-Tibetan Plateau, at about 37 kaBP. This cannot be interpreted by means of changes in the accumulation rate, but by the enhanced cosmogenic isotope production rate in the atmosphere. Compared with the records of10Be and36Cl in the other regions, the peaks of the cosmogenic isotopes are global and can be considered as time marks. An intriguing fact is that the peaks coincided with cold periods.

关 键 词：GULIYA ice core COSMOGENIC ISOTOPE 36Cl global event CLIMATIC change. 

分 类 号：P343.6[天文地球—水文科学]