An unconformity / discontinuity is a place from which some of the evidence is missing. Sills, Dikes, Faults and so on are examples.
One may infer that such and such an action has taken place, but there remains no evidence of where the fault moved the rock to.
+++
No! Wrong! Sorry!
'
For a start the examples above are not unconformities: sills and dykes are igneous intrusions, faults are shear-fractures in which the rocks on one side of the break are moved across those on the other side. And there IS evidence when a fault is observed, of "where the fault moved the rock to". The movement is called the "Throw" and if not exposed on the surface can be found in boreholes or seismic surveys.
'
An unconformity is the result of new rock being deposited on an eroded surface of older rock, with the expected intervening succession missing - either not laid in that location anyway, or it was laid down then eroded away.
Rock layers are indicators of the geologic history of a given area. The line that seperates different stratas of rock is called an unconformity and represents a "break" in time.
what is it called when there is a sequence of gaps due to a eriosion
A layer of rock might have eroded
una capa de roca podría haber erosionado
it leaves a gap in the geological record
A gap in the rock time period
Missing layler
Hi
An unconformity is the contact between two layers representing a gap in the geologic record, usually from the erosion of the layers which would normally be expected to appear.
An unconformity. There are three main types: angular unconformity, disconformity, and nonconformity.
An ideal sequence of rock layers that contains all the known fossils and rock.
1.Geologists use the geologic column to help them interperet rocks sequences. 2.they use to help them identify rock layers in complicated rock sequence.
The unconformity shows all the other layers of rock that have formed underneath it
An unconformity is the contact between two layers representing a gap in the geologic record, usually from the erosion of the layers which would normally be expected to appear.
An unconformity. There are three main types: angular unconformity, disconformity, and nonconformity.
Unconformities are surfaces that represent gaps in the geologic record that formed wherever layers were not deposited for a time or else layers were removed by erosion.
An unconformity is a gap in the sedimentary rock record. This animation shows the formation of an angular unconformity-one where the layers above and below the unconformity are not parallel to each other, but form an angle.
unconformities
the geologic column is used for identifying the layers in a rock sequence.
Angular unconformity :D
angular unconformity
An ideal sequence of rock layers that contains all the known fossils and rock.
1.Geologists use the geologic column to help them interperet rocks sequences. 2.they use to help them identify rock layers in complicated rock sequence.
To help them interpret rock sequence .
The unconformity shows all the other layers of rock that have formed underneath it