owen317747
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 Posted: Thu 8:43, 24 Mar 2011 Post subject: Beijing Private Tour |
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large gray area plant fossils. Large ash plant is located in Fengtai District piedmont district, within which the distribution of Ordovician and Cretaceous group of the East and large gray wolf groove formation in plants and other Tertiary Changxindian conglomerate rock. Geologists in the Cretaceous and Tertiary strata, a few fossils were found: one group of Cretaceous floor of East Wolf of small ditch gastropods, bivalves, ostracods microfossils, fish class scale and panel, and fossil pollen; Second, a large ash plant Formation of gastropods, bivalves, conchostracans, ostracods, insects, fish and other fossils, including the notable Jehol A typical group of fossils - Lycoptera Oriental conchostracans, three to be ephemera, etc.; third is the old Tertiary strata in the freshwater gastropod, mammals, fish and so on. Study of these fossils and geological functions around the ground during the antique air, fluvial-lacustrine environment alteration has one important averaging of the times.
Under Austin Reed - Ding Beach trilobite fossil strata. Cambrian strata in array apt solve the department of Western Hills of Beijing, numerous older geologists under the special consideration of the Mentougou Austin Reed - Ding stratigraphic partition of Beach. 1934, Zhang WY, Li Tang, the 1st period in the secretion of additional strata in a massive digit of trilobite fossils. Trilobites are the emergence of a Precambrian arthropod early to late it has entered the peak period of the Cambrian, Silurian and then gradually decline to the late Permian period completely extinct. Up to 10,000 kinds of its kind nigh the earth, in China there are more than 1000. The fossils of early Paleozoic strata department has major implications for, adore and enjoy and likewise namely amount.
ash valley Carboniferous - Permian strata fossils. Valley is located in the Asian gray Mentougou, the military countryside north of here for the typical evolution of a Upper Paleozoic Carboniferous - Permian system profile, for many famous Chinese and alien geologists attention. They repeated visits, has in the gray valley Dongshan quarry and the upper beam Carboniferous argillaceous limestone, we found a long box with the rich body shell, Shi Yan, crinoid stems, corals, and tongue-shaped shell ( sea ??bean buds) and fossils. In the Carboniferous, Permian system of dirt pages, and found 2 to 3 million years ago a large number of fossils of the Paleozoic land plants, such as vein fern, fern wedge, subjects such as trees and wood scales. In addition, the North is a crack in the ash pile Village as the ruddy clay, also found a large number of large mammal fossils and fossil rodents, such as Jia-style badgers, rabbits and other times, a aggregate of 20 species. These fossils preserved well, signification both the local stratigraphic correlation, has a decisive elegant value.
rodents Zhoukoudian fossils rare northern tilt of Victoria Peak. Zhoukoudian in Fangshan District, north slope of Victoria Peak, Cao Boxun and other scientists in the learn of rodents found in a number of rare fossils, and its variation of category including hamsters Yike Shi, the proposed variation of hamsters, rabbits and Apodemus Weng and so aboard. Yike Shi hamster variation in Shaanxi loess fossils by the base of the quondam have been discovered,Beijing Private Tour, paleomagnetic age of 240 years B. P. . The Zhoukoudian fossils of Victoria Peak is the same rodents produced in 12 locations and 18 locations, along to North China Quaternary evolutionary history of mammals, projections, it should be late Pleistocene strata (73 to 92 million years antecedent), so as to create Peak Group of the Lower Pleistocene standard profile.
Yanqing Longwan petrified lumber under the German. Germany in Yanqing County, under the thousands of Dianxiang Longwan group Jurassic sandstone and shale formation behind the city, they have discovered fossils of petrified lumber in Beijing only group. The so-called petrified wood, means the vegetation has been petrified of the secondary xylem, its material essay, mostly silica, calcite, dolomite, limestone scales, brown steel mineral. Most of the petrified wood exposed vertical surface in a few square kilometers among a radius of almost 40 strains, the largest diameter of 2.5 m and there are tens of centimeters, namely generally 0.5 to 1.0 meters. Petrified wood exposed surface height and the color varies, and some almost 2 meters on the ground, while others are equitable on the ground; some color to gray, meantime others showed the gray and brown. In the across section of petrified wood, and tin clearly look the beautiful rules of a surround, density and white rings; in longitudinal section, and tin also see the subtle perpendicular texture and rugged, the fossil is approximately 1 cm thick bark.
According to some experts, maximum of these petrified wood in gymnosperms, conifers, has been 100 million 3 million years old. At that time, the Yanshan action, volcanic eruptions, woods tracts to be buried underground, in the high-pressure oxygen context, the slow penetration of water embodying silica into the tree house, silica alphabetical molecular replacement of the trees composition, the architecture of trees maintained organic matter vanished into the petrified wood. As the surface height, petrified wood exposed surface, forming today's exposed location. Longwan petrified wood under the German, the exposed zone of ??the large number of wealthy, thick diameter trees are rare in the country, and now this area has opened for passenger speck.
beijing aerodrome transfer
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