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
Many gold mining companies will alter the natural landscape of Mongolia. The extraction of gold disappear hundreds of rivers and lakes, and the Mongolia slowly turning into a desert.
In addition to the official production companies from Russia, Japan, China (from 23 countries), the main problem are the “black diggers”. They are called “ninjas” because of their appearance: they wear behind green metal pots, which are similar to heroes of the popular cartoon about the ninja turtles. Pictures of David gray, Reuters.
First, this “underground” activity in Mongolia was engaged in migrant workers from China, but after some time of this “economic niches” they were replaced by the Mongols themselves. Traditional Mongolian tent:
According to various estimates environmentalists, more than 100 thousand people in Mongolia are engaged in illegal gold mining. Photo: old Russian van production on someone’s yard: Continue reading
On the banks of the Dnieper-bug estuary in ancient times (to be exact – in the 6th century BC) landed Greek settlers from Miletus founded the ancient city of Olbia, which existed for a thousand years!
The ancient city of Olbia
In my opinion, I wouldn’t do Olvia predajem Odessa and the Chersonese is not predajem of Sevastopol. And if today you can not magically create any decoupage, only to get materials to the in history we have to contemplate the little that was left and try to preserve this heritage. But here, in General, it will be a different story.
So, this ancient city was one of the 4 largest ancient colonies of the black sea region, as its economic and cultural center: conducted trade fabrics, jewels, grains and fish, was in Athens sea Union. The city was besieged by the troops of Alexander the great, Olivia and the province of the Roman Empire.
The type of government policy was the democratic slave-owning Republic, in which civil rights empowered women, foreigners, slaves and semi-free populations. During the heyday in Olbia there were about 25 thousand inhabitants. In the walls of the city were the temples, and craft shops, and shopping districts, and homes, was even its own currency – bronze aces, which visiting merchants-the merchants and the guests were Oliveolive to change their silver and gold. Continue reading