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
Heart to Heart Community Care migrant worker community, Heart to Heart specifically targets women, children, elderly, disabled people, and other disadvantaged groups. Heart to Heart utilizes a broad-based social work approach to helping migrants, and focuses on facilitating community involvement in its work. The organization works to integrate all available resources pertaining to migrant workers, such as the government, large foundations, community organizations, and volunteers, and approaches issues on case-by-case, small group, community-wide, and broader societal level bases. Its main goals are the direct provision of services to migrant workers, research on issues relating to migrant workers in Kunming, and policy advocacy. The organization's structure