Photosynthesis by the earliest forms of plant life, this means a form of life able of feeding itself instead of feeding off of others. photosynthesis will produce significant amounts of oxygen. Oxygen have one important thing to know is that likes to reach with things. oxygen is one of the reactive of all the elements in nature. So, oxygen will readily attack and attach itself to other elements, such as Iron. it is readily attacked by oxygen.
Another form of heterotrophic is life forms which take things outside themselves. Its had been producing waste products such as iron in the form of pyrite. Pyrite is a rock which is resembles gold, so pyrite called as fools gold. As oxygen began to be produced, a curious phenomena occured. Huge amounts of iron which had accumulated in the early ocean were attacked by the accumulating oxygen. When oxygen (O2) reacts with iron (Fe) containing substances such as FeS2 (pyrite), iron ores are produced. Oxide rocks such as hematite, limonite, magnetite and siderite are among the iron ores. Rocks in this case are mined today, and the iron (Fe) they contain in that rocks. So, Iron ores are rocks and minerals from which metallic iron can be economically extracted.
This process working so long to make a huge iron ore deposit. This activity took place between 3.5 and 2.5 billion years ago. Over a period of a billion years, huge deposits of iron ores were laid at the bottom of the sea. Iron ores mined today in the South Africa, Australia, and United States, are part of the huge deposits laid down at that time.
Another form of heterotrophic is life forms which take things outside themselves. Its had been producing waste products such as iron in the form of pyrite. Pyrite is a rock which is resembles gold, so pyrite called as fools gold. As oxygen began to be produced, a curious phenomena occured. Huge amounts of iron which had accumulated in the early ocean were attacked by the accumulating oxygen. When oxygen (O2) reacts with iron (Fe) containing substances such as FeS2 (pyrite), iron ores are produced. Oxide rocks such as hematite, limonite, magnetite and siderite are among the iron ores. Rocks in this case are mined today, and the iron (Fe) they contain in that rocks. So, Iron ores are rocks and minerals from which metallic iron can be economically extracted.
This process working so long to make a huge iron ore deposit. This activity took place between 3.5 and 2.5 billion years ago. Over a period of a billion years, huge deposits of iron ores were laid at the bottom of the sea. Iron ores mined today in the South Africa, Australia, and United States, are part of the huge deposits laid down at that time.
1 komentar:
This was a good post for me. Easy to read, and simple steps that any blogger can follow. By the way, I like the way you highlight your popular posts in the sidebar – very simple and attractive layout!
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