Fossils are the remains and imprints of plants and animals that lived on Earth in the long past era. But turns into a fossil only a small part of plants and animals. As a rule, their remains are either eaten by other animals or decomposed by the action of fungi and bacteria. Shells or hard bony skeletons persist longer, but eventually they are destroyed. It was only when the remains are buried in the ground very quickly, before they have time to decompose, they have a chance to survive and turn into a fossil. To the deceased plant or animal was buried rapidly, it is necessary that over it there was a sediment, for example sand or silt. Then his remains were soon denied access of air and not rot. Over millions of years of sedimentary layers of the lower pressure of the upper turn into solid rock.
Water that seeps into sedimentary strata, contains minerals. Sometimes she washes them out of the sedimentary material. Under the weight of the upper sedimentary layers of the water displaced from the bottom. Minerals remain within and contribute to the bond of the sedimentary layers and their solidification into rock. These minerals are deposited even in the remains of plants and animals, filling the spaces between their cells, and sometimes even “replacing” their bones or shells. So obratimosti naturally grow in the stone and remain there Continue reading
Michael Medler from Western Washington University in Bellingham told me that the ancestors of humans could get a chance to develop because they lived near volcanoes and can near them to cook hot food for the brain, reported IA “data” with reference to RIA Novosti.
This thought came to the scientist after he had lived in Hawaii, near the crater of the volcano a few days. The man was sheltering for the night in a tent and cooked outside using volcanic heat that made him think about how distant human ancestors such as Homo erectus (Homo erectus) or some Australopithecus, to be able to live near volcanoes and cook boiled and grilled foods, with no prior intelligence.
To test their hypothesis, the scientist has tested all discovered graves of ancient human ancestors and found that they all lived near volcanoes or hot rift faults that existed in Africa 2-3 million years ago.
One of the main mysteries of anthropology is still how and why the ancestors of the people began to prepare and eat grilled and boiled foods, Continue reading
In the Chegem district of Kabardino-Balkaria Institute of archaeology of the Caucasus (Nalchik) and scientists of the South of Russia began excavating the largest known settlement, Dating from the seventh century BC. As reported on August 18, the Director of the Institute of archaeology of the Caucasus Kerim Mirzoyev, in the excavation area of 600 square meters discovered the remains of dwellings, ancient buildings, household pits and a large number of pottery and bronze ware and late Scythian-Koban culture. The findings in the thousands.
“Until October the tender will have to dig 2 thousand square meters of land, caught in the zone of construction of a bypass highway Cool-Azau. To work as subcontractors involved colleagues from the Krasnodar and Stavropol edges, the Rostov region”, – said Mirzoyev. “Under two meters of soil is found the monument of history, which will allow to unite into a single chain of historical discoveries made earlier in Chechnya, North Ossetia, Ingushetia, in the territory of Kavminvod and check the earlier historical assumptions”, – said the head of the expedition, Continue reading