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What is a palaeocurrent?
A palaeocurrent is a geological feature which indicates the direction of flow of water in the geological past.
What is a palaeorecord?
A palaeorecord is a geological record, especially a fossil record.
What divides Earth's long history?
Geological events and their representation in the geological record.
What is a gap in the geological record preserved in rock called?
A gap in the geological record in a body of rock is called an unconformity.
What problem does a uncomtormity present?
It leaves a gap in the geological record.
What is a break in the geological record?
A break in the geological record refers to a gap in the sequence of rock layers, known as stratigraphic discontinuity, where no deposition or preservation of rocks occurred. These breaks are often caused by erosional processes, tectonic events, or periods of non-deposition. They represent missing time periods in the Earth's history.
What is the record of earths history called?
The record of Earth's history is called the geological timescale. It is a classification system that organizes Earth's history into different time intervals based on significant geological events and changes in life forms.
What is the result of Older layers of rock found on top of younger layers called?
The result of older layers of rock being found on top of younger layers is referred to as an "unconformity." This geological feature indicates a significant gap in the geological record, often due to erosion or periods of non-deposition. It disrupts the normal sequence of sedimentary rock layers, where younger layers are typically deposited on top of older ones. Unconformities can provide important insights into the geological history of an area.
Where in the rock sequence does a disconformity occur?
A disconformity occurs between two sedimentary rock layers that are parallel but separated by an erosional surface. This geological feature indicates a period of erosion or non-deposition that interrupts the continuous sedimentary record. Disconformities can be identified by an abrupt change in fossil content or rock type, marking a gap in geological time. Essentially, it highlights a break in the depositional history of the rock sequence.
The fossil record indicates that Earth has experienced?
5 mass extinctions
What indicates a records position relative to the beginning of a file?
A relative record number indicates a records position relative to the beginnig of a file.
By which professions was the geological time scale used by?
The geological time scale was used by professions such as scientists. Scientists use this to record important life events and life forms. These are very important to humans.
