The reconstruction of the paleotemperature of the Earth’s surface on Yuzhny Island (Novaya Zemlya archipelago) according to geothermal data

Georesursy

V.R. Akhmedzianov¹  D.S. Nikitin¹  M.D. Khutorskoi¹  D.Yu. Demezhko² 

[1] Geological Institute of the Russian Academy of Sciences;Institute of Geophysics of the Ural Branch of the Russian Academy of Sciences;

关键词: paleotemperature;    Earth’s surface;    reconstruction;    Novaya Zemlya;    geothermy;    heat flow;   

DOI  :  10.18599/grs.2019.3.136-140

来源: DOAJ

【 摘 要 】

According to the complex geothermal investigation results (thermal conductivity, rocks thermal heterogeneity measurements as well geothermal gradient and heat flow calculation) on Yuzhny Island of Novaya Zemlya archipelago (Pavlovskoye lead-zinc field), the paleotemperatureon the surface in the historical past are modeled. The results of the climatic history reconstruction in this region are discussed. An earlier heat flow estimate on on Yuzhny Island of Novaya Zemlya archipelago (46 mW/m2) could be underestimated if we assume the glacier absence during the “Pleistocene / Holocene warming”. In this case, the calculated heat flow will be 55 mW/m2. If during the “small glacial period” the glacier existence lasted for 20 thousand years, then the first heat flow estimate is more likely.

【 授权许可】

Unknown