Concepts
40 concepts
floodplain hydrostratigraphy
The spatial organization of sedimentary deposits and their hydraulic properties within floodplain aquifers
environmental drivers
paleoenvironmental reconstruction
Interpretation of ancient environmental conditions based on fossil assemblages
fracture spacing
frost exposure
lithologic composition
tectonic overprints
contact metamorphism
Alteration of rocks by pressure and temperature conditions related to igneous intrusions that changes rock pore structure and mineralogy
geochemistry
radiocarbon dating
Measurement of ¹⁴C content to distinguish between modern plant-derived and ancient shale-derived organic carbon sources
Last Glacial Maximum
The most recent time during the last glacial period when ice sheets were at their greatest extent
Desmoinesian age
Laramide Orogeny
biostratigraphic correlation
Temporal correlation of rock units based on fossil content
deposition
glacial advances
Forward movement of ice sheets that leave behind terminal moraines and other glacial deposits
Atokan
Campanian-Maastrichtian
Late Cretaceous geological time intervals
Desmoinesian
Heinrich Event 1
Marine Oxygen Isotope Stage 2
Missourian age
Pennsylvanian Period
biological invasion
fault characterization
glacial striae
Linear scratches and grooves carved into bedrock by glacial ice movement
magnetic foliation
post-depositional modification
timberline
transgressive-regressive cycles
Cycles of sea level rise and fall that control sediment deposition patterns in marine basins
uplift
Mesaverde Formation
Rarick Gulch fault
bedscarps
caldera volcanism
explosive eruptions
lateral cutting
paleoecology
paleoglacier reconstruction
Reconstruction of past glacier extents and ice thickness using geomorphic evidence and numerical modeling