نتایج جستجو برای: calcrete
تعداد نتایج: 70 فیلتر نتایج به سال:
............................................................................................VII ACKNOWLEDEMENTS..............................................................................X
Eucalyptus is a plant that able to absorb gold (Au) particles from the soil and store them in leaves. roots have ability penetrate of calcrete zone, which rich mineral calcium (Ca). Calcium chemical element with symbol Ca atomic number 20. As an alkaline earth metal, reactive metal forms dark oxide-nitride layer when exposed air. contains Au as impurities, making this potential natural indicato...
The Valley of Lakes is approximately a 500-km elongate depression in Central Mongolia, where Eocene to Miocene continental sediments are long known for their outstanding fossil richness. The palaeontological record of this region is an exceptional witness for the evolution of mammalian communities during the Cenozoic global cooling and regional aridification. In order to precisely elucidate the...
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