Protocol Relating to the Status of Refugees the temporal and geographic restrictions. This was needed in the historical context of refugee flows resulting from decolonisation. However, the Protocol gave those states which had previously ratified the 1951 Convention and chosen to use the geographically restricted definition the option to retain that restriction. Protocol Relating to the Status of Refugees The Protocol Relating to the Status of Refugees is a key treaty in international refugee law. It entered into force on 4 October 1967, and 146 countries are parties. Where the 1951 United Nations Convention Relating to the Status of Refugees had restricted refugee status to those whose
Provenance (geology) sediment Nd and Sr isotopes, garnet chemistry, pyroxene chemistry, amphibole chemistry and so on. There is a more detailed list below with references to various types of provenance methods. This method is widely used in provenance studies and it has the ability to link sandstone composition to tectonic setting. This method is described in the Dickinson and Suczek 1979 paper. Detrital framework modes of sandstone suites from different kinds of basins are a function of provenance types governed by plate tectonics. (1)Quartzose sands from continental cratons are widespread within interior basins, platform successions, miogeoclinal wedges, and opening ocean basins. (2)Arkosic