Footprints found in the ancient lakebeds of White Sands may prove that humans lived in North America 23,000 years ago — much earlier than previously believed. A new study using radiocarbon-dated mud ...

In a nutshell New independent research confirms that 23,000-year-old human footprints at White Sands National Park are authentic, proving people lived in North America during the peak ice age. The ...

2.2 Sample preparation To study the influence of using redispersible polymers on mechanical and microstructural properties of the gypsum we adopted the content of 5% and 10% in gypsum putty (Table 1).

In this paper, anhydrous pyrolysis experiments were performed on Huadian oil shale kerogen with and without different minerals (calcite, kaolinite, gypsum, montmorillonite) using a Fischer assay ...

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THE TARIFF Commission (TC) has ordered the imposition of anti-dumping duties on standard gypsum board imports from Thailand for five years due to its negative impact on the domestic industry. “During ...

Canadian exploration and mining company EDM Resources has signed a definitive gypsum offtake supply agreement valued at $58m (C$79.39m) with a Canadian gypsum producer and wallboard manufacturer for ...

Lime application recommendations for amendment of soil acidity in sugarcane were developed with a burnt cane harvesting system in mind. Sugarcane is now harvested in most areas without burning, and ...