Provenance (geology) diagenetic changes that occur in siliciclastic sediment during burial and uplift". Provenance studies are conducted to investigate many scientific questions, for example, the growth history of continental crust, collision time of Indian and Asian plates, Asian monsoon intensity, and Himalayan exhumation Meanwhile, the provenance methods are widely used in the oil and gas industry. "Relations between provenance and basin are important for hydrocarbon exploration because sand frameworks of contrasting detrital compositions respond differently to diagenesis, and thus display different trends of porosity reduction with depth of burial." All rock exposed at the Earth's surface is subjected to physical or chemical
Back to Now Back to Now Back to Now is the seventh and latest studio album by American R&B female group Labelle, released on October 21, 2008. The album is the group's first in over thirty years though they had sung on songs together on occasion. Labelle member Nona Hendryx explained the album's title to noted R&B writer Pete Lewis of "Blues & Soul": "It basically stemmed from two of the songs on this album being songs I'd specifically written for what would have been the next Labelle album back in 1977. So the title 'Back To Now" is really signifiying that this