early life. zorig's grandfather was a russian geographer and ethnographer a. d. simukov who had come to mongolia as part of an expedition headed by pyotr kozlov.zorig's grandfather was a victim of marshal choibalsan's purges, leaving his daughter dorjpalam, zorig's mother, an orphan. dorjpalam starred in a popular mongolian movie before marrying sanjaasüren, mongolian state university .
sand is a granular material composed of finely divided rock and mineral particles. it is defined by size, being finer than gravel and coarser than silt. sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. the composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica, usually in
green sand for aluminum typically uses olivine sand a mixture of the minerals forsterite and fayalite, which is made by crushing dunite rock . the choice of sand has a lot to do with the temperature at which the metal is poured.
the mongol invasion of europe in the 13th century was the conquest of much of europe by the mongol empire. the first wave of invasions occurred from the 1220s into the 1240s. in eastern europe, the mongols destroyed volga bulgaria, cumania, and russian principalities such as kiev and vladimir.
most of inner mongolia is a plateau averaging around 1,200 metres 3,940 ft in altitude and covered by extensive loess and sand deposits. the northern part consists of the mesozoic era khingan mountains , and is owing to the cooler climate more forested, chiefly with manchurian elm , ash , birch , mongolian oak and a number of pine and spruce species.
the kumtag desert is continuing a process of expansion that is the result of centuries of overgrazing of this region that is beyond its carrying capacity. according to the afp news report of november, 2007: 'towering sand dunes of the kumtag desert loom over the ancient chinese city of dunhuang'.