Variations of Dissolved Helium and Radon Caused by Earthquakes in Groundwater of the Southern Cis-Baikal Region

This paper reports on variations in the concentrations of dissolved radon, registered in groundwaters of the Southern Cis-Baikal region run-up to earthquakes of different energy classes, located at different distances from the point of geochemical observations. Using the obtained data, an equation of regression was calculated for the relationship between the log(TR) function and the energy class of earthquakes. These data can be used as signs of short-term earthquake precursors.     

A New Theropod Dinosaur (Theropoda,Dromaeosauridae) from the Late Cretaceous of Tajikistan

Doklady Earth Sciences - A new dromaeosaurid theropod dinosaur, Kansaignathus sogdianus gen. et sp. nov., is described based on a dentary from the Yalovach Formation (Santonian) at Kansai locality...     

Lang Trang Cave (Northern Vietnam): Pleistocene Mammalian Locality with Gigantopithecus Finds

Doklady Earth Sciences - Speleological, geological and paleontological characteristics of the Lang Trang cave in northern Vietnam are presented. Primates Gigantopithecus blacki von Koenigswald,...     

Taxonomic Attribution of a Juvenile Hadrosauroid Dinosaur from the Upper Cretaceous Bayinshire Formation of Mongolia

Doklady Earth Sciences - A nearly complete and articulated dinosaur skeleton from the Upper Cretaceous (Cenomanian–Santonian) Bayinshire Formation at Bayshin Tsav locality in Gobi Desert...     

New Data on Sibirotitan,a Titanosauriform Sauropod from the Early Cretaceous of Western Siberia

Doklady Earth Sciences - The previously unknown second cervical vertebra (axis) of the sauropod Sibirotitan astrosacralis Averianov et al., 2018 from the Early Cretaceous locality Shestakovo 1...     

Comparative characteristics of the lithological composition of the incised valley filland host sediments of the Vikulovo Formation, Kamenny area, West Siberia

Comparative characteristics of the lithological composition of estuarine incised valley fill, as well as the enclosing and overlying storm-related deltaic sediments (beds VK₁, VK₂, and VK₃), in the productive part of the Vikulovo Formation (upper Aptian), Kamenny area, West Siberia are given. It is shown that the incised valley fill-reservoirs, which are characterized by a coarser structure, inferior sorting, lower mineral maturity, and predominant kaolinitic clayey cement, demonstrate higher filtration properties.     

Morphological systematics of the relief and its implications for geography and geoecology

We examine the issue concerning the determination of the line of demarcation between geomorphology and the related Earth sciences which is associated with elementarization of continual topographic surface of the planet’s relief. We present our view of the progression along this direction that relies on the theory of the system-morphological foundation of Earth sciences. We established the existence of the synenergy effect in the use of the system-morphological approach in all particular geographical sciences: in microclimatology, it provides a means of referencing microclimates and “local climates” to topographic features; in soil science, it revitalizes the notion of an elementary soil area thus simplifying the process of soil mapping. In geobotany and biogeocenology, this approach helps to make results from studying phytocenose productivity and from dendroindication investigations more representative. We determined a direct practical importance of landscape geophysics and assessments of the significance of geotopes on land surface as well as on the bottom of the World Ocean and beneath mainland glaciers. It is suggested that the system-morphological approach be used in the interests of a further development not only of traditional analytical geomorphology but also its new, synthetic direction that relates geomorphology with social sciences. It is established that in such a case the symmetry tools can be sued to define the relief as the set of locations with anthropogenic objects, processes and phenomena.     

A Therizinosaur (Theropoda,Therizinosauridae) from the Late Cretaceous of Tajikistan

Doklady Earth Sciences - A theropod femur from the Late Cretaceous Kansai locality in Tajikistan (Yalovach Formation, Santonian) is referred to the family Therizinosauridae based on a combination...     

Sources and Provenances of Late Cenozoic Sand Deposits of the Ol’khon Island (Baikal Rift Zone)

Doklady Earth Sciences - Geochronological (LA–ICP–MS) U–Th–Pb studies of detrital zircon of the Late Cenozoic sand deposits on Ol’khon Island have been performed. It...