Provenance in geology, is the reconstruction of the origin of sediments. Sediments are expected to be able to provide evidence of the erosional history of their parent source rocks. The purpose of provenance study is to restore the tectonic, paleo-geographic and paleo-climatic history.
What is provenance analysis?
Provenance analysis aims to determine the source region (provenance) of a sediment sample. It is aimed to reconstruct the parent rock or rocks of sand bodies, the time of deposition of the sand, and, if possible, the climate conditions during the formation of the sediments.
What is a facies in geology?
1. n. [Geology] The overall characteristics of a rock unit that reflect its origin and differentiate the unit from others around it. Mineralogy and sedimentary source, fossil content, sedimentary structures and texture distinguish one facies from another. See: depositional environment, lithofacies.
What is a recycled Orogen?
Recycled Orogen. Sediments resulting from Geotectonic Position. Sediments resulting from Humid vs. Arid Climate. Sediments resulting from Different Basalts based on proportions of Titanium / Manganse / Sodium Oxides.
What is Paleocurrent direction?
A paleocurrent or paleocurrent indicator is a geological feature (typically a sedimentary structure) that helps one determine the direction of flowing water in the geologic past. This is an invaluable tool in the reconstruction of ancient depositional environments.
Where does burial metamorphism occur?
Burial metamorphism commonly occurs in sedimentary basins, where rocks are buried deeply by overlying sediments. As an extension of diagenesis, a process that occurs during lithification (Chapter 5), burial metamorphism can cause clay minerals, such as smectite, in shales to change to another clay mineral illite.
What are heavy minerals in geology?
In geology, a heavy mineral is a mineral with a density that is greater than 2.9 g/cm3, most commonly referring to dense components of siliciclastic sediments. As heavy minerals are a minor constituent of most sedimentary rock, they must be separated out to be studied.
What does it mean for a delta to prograde?
From Wikipedia, the free encyclopedia. In sedimentary geology and geomorphology, the term progradation refers to the growth of a river delta farther out into the sea over time.
What is cross bedding in geology?
In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary structures which result are roughly horizontal units composed of inclined layers.
What is paleocurrent in geology?
What is ripple marks in geology?
In geology, ripple marks are sedimentary structures (i.e., bedforms of the lower flow regime) and indicate agitation by water (current or waves) or wind.
What is meant by the term provenance?
Provenance refers to all aspects of the ultimate source of a sedimentary rock: the composition of the source area, its location (distance and direction), and the climate and relief (topography) of the source area. Identification of the provenance of a sedimentary rock depends largely on the study of its clastic components.
What is the purpose of provenance study of sedimentary rocks?
Sediments are expected to be able to provide evidence of the erosional history of their parent source rocks. The purpose of provenance study is to restore the tectonic, paleo-geographic and paleo-climatic history.
What is the ultimate goal of provenance studies?
The ultimate goal of provenance studies is to investigate the characteristics of a source area by analyzing the composition and texture of sediments. The studies of provenance involve the following aspects: ” (1) the source (s) of the particles that make up the rocks, (2) the erosion and transport mechanisms…
What is the difference between provenience and provenance in archaeology?
Archaeology and anthropology researchers use provenience to refer to the exact location or find spot of an artifact, a bone or other remains, a soil sample, or a feature within an ancient site, whereas provenance covers an object’s complete documented history.
