A contractual agreement in which a mineral rights owner or lessee assigns a working interest to another party who will become responsible for specific exploration, development or production activities.A very slow movement that occurs on faults in response to continuous tectonic deformation.The relative age of two rock units can frequently be determined by matching the fossils found in those rocks to their positions in the rock record.All scientific disciplines have an essential vocabulary that students and professionals must understand to learn and communicate effectively.
Flood currents can temporarily reverse the flow of rivers that enter the ocean.
Others can be the initial step of forming an igneous dike. A deep, narrow, steep-walled, U-shaped valley that was eroded to a depth below sea level by glaciers and then flooded with sea water after the glacier melted.
Shown here is the Hudson River Valley fjord in New York, as seen from Anthony's Nose Overlook.
They can be very strong at the openings of bays and between barrier islands, where large amounts of water must flow through a narrow opening in a limited amount of time.
The arrows in the image show the directions that water would flow as flood currents enter a river and fill lagoons behind barrier islands.