Provenance (geology) to determine the origin of sediments. This is often used in conjunction with the study of exhumation histories, interpretation of drainage networks and their evolution, and forward-modelling of paleo-earth systems. In combination, these help to characterise the "source to sink" journey of clastic sediments from hinterland to sedimentary basin. Provenance (from the French provenir, "to come from"), is the place of origin or earliest known history of something. In geology (specifically, in sedimentary petrology), the term provenance deals with the question where sediments originate from. The purpose of sedimentary provenance studies is to reconstruct and to interpret the history of
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