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
How much mystery lurking in the bowels of the earth, no one knows for sure. But every day somewhere in the world some scientist finds some interesting pieces left in earth history.
How much mystery lurking in the bowels of the earth, no one knows for sure. But every day somewhere in the world some scientist finds some interesting pieces left in earth history. Such findings often do not resolve all the issues that were to the past, but also creates many more. How did the world all have long known the works of many historians. But, as it turns out, there are archaeological excavations, the so-called most ancient artifacts that either make adjustments, or simply change the facts, so many years noble as the truth.
What artifacts are the most interesting? For decades, mines in South Africa workers are wonderful areas. They are quite small, about an inch in diameter. Some of them are present in the grooves, parallel to each other, embossed around the equator. Composition and material from which they are made, there are two types of such findings. The first is a balls out metal patterns solid color blue with white streaks. The second is a hollow balls, filled with a spongy material. Find such areas in the rock, which age more than 2.8 billion years before mankind is still far. Who created them remains a mystery. Continue reading