Several significant events of a geological nature occurred approximately 800 ka before the present: (1) Australasian tektite fall (AA), (2) Brunhes-Matuyama geomagnetic reversal (BMR), (3) mid-Pleistocene changes in i...
the Northeastern Research Institute of Petrified Wood and Mineral Resources,Nakhon Ratchasima Rajabhat University,for financial and logistical supports throughout the research project
A sedimentary profile exposed in soil quarries a few kilometers north of Noen Sa-nga district,Chaiyaphum province,NE Thailand,reveals a Quaternary geological history.The lower part of the soil profile is a gravel depo...
supported by the DVO Russian Academy of Science (No. 09-Ⅲ-А-08-401)
A comprehensive mineralogical-geochemical and petrological study of ignimbrites from the Yakut-Gora volcanic depression (Primorye, Far Eastern Russia) revealed a wide distribution of silica-metal spherules ("globu...
Tektite arouses great concern of the scientists in different fields, mainly because it is a synthesized material produced by impact between terrestrial material and extraterrestrial material, and the falling or formin...
Tektites have been found in many localities over the world, mainly in Asia-Australia, Cote Divoire, Moldavia and North America with isotopic ages of about 0.7, 1.1, 14.5 and 34.5 Ma respectively. Tektites in China are...
Most terrestrial impact craters such as Ries and Lappajarvi craters contain a lot of impact melts. The common character of the impact melts includes (ⅰ) an extremely homogeneous composition, (ⅱ) the chemical compone...