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
Artwork damaged or destroyed in the September 11 attacks Artwork damaged or destroyed in the September 11 attacks An estimated $110 million of art was lost in the September 11 attacks: $100 million in private art and $10 million in public art. The attacks were said to be "the biggest single disaster ever to affect the [art] industry". The Port Authority held an estimated 100 pieces of art work at the World Trade Center Complex, in addition to the seven public works of art that had been created for the World Trade Center, all of which were destroyed or severely damaged. An estimated $10 million worth of public art