Phys.org on MSN14d
Unknown microorganisms used marble and limestone as a habitatIn the desert areas of Namibia, Oman, and Saudi Arabia, research work has revealed unusual structures that are probably due ...
These are stalagmites and stalactites. They are also the result of water seeping through limestone, which is made of calcium carbonate. The calcium carbonate is dissolved in the water as it seeps ...
Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...
To make concrete, limestone, or calcium carbonate, is mixed with clay and other materials and then calcined at high temperatures, so CO2 is released via the thermal decomposition of calcium carbonate.
Tech Xplore on MSN7mon
Researchers fabricate calcium carbonate concrete blocks strong enough for construction useLimestone is a key ingredient in Portland ... react with CO 2 in the air to form calcium carbonate. The researchers performed a sped-up version of this process to recreate the same kind of ...
One of the most common chemicals connected to calcium is called “carbonate”, and together they make calcium carbonate. Calcium carbonate is in eggshells, seashells, a rock called marble, and in ...
Evidence of an Unknown Life Form That Lived Inside Marble and Limestone, Found in Namibia and Arabia
In the vast and arid landscapes of Namibia, Oman, and Saudi Arabia, a team of researchers has identified a series of peculiar ...
The tubes were not empty but filled with a fine powder of clean calcium carbonate. It is assumed ... in Oman and in Saudi Arabia -- in Oman in limestone, while in the Saudi Arabian desert they ...
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