In geology an intra-arc basin is a sedimentary basin that exists amidst a volcanic arc. Being located next to volcanoes intra-arc basins tend to host volcano-sedimentary sequences. Cura-Mallín at the border of Chile and Argentina is an example of an intra-arc basin.
Some Neoproterozoic clastic metasedimentary rocks in the Central Eastern Desert of Egypt (CED) derived from bimodal volcanic sources appear to have been deposited in arc-related basins, including interarc or back-arc basins, intra-arc basins, and retro-arc basin of active continental margin.[1]
References
- ^ El Bahariya, G,. (2018). Geology, geochemistry, and source characteristics of Neoproterozoic arc-related clastic metasediments, Central Eastern Desert, Egypt. Arabian Journal of Geosciences 11 (5), 87
Structural geology |
|---|
| Underlying theory |
- Deformation mechanism
- Lamé's stress ellipsoid
- Mohr–Coulomb theory
- Mohr's circle
- Overburden pressure
- Rock mechanics
- Strain
- Strain partitioning
- Stress
- Stress field
- Tension
|
|---|
| Measurement conventions | |
|---|
| Large-scale tectonics |
- Accretionary wedge
- Allochthon
- Autochthon
- Back-arc basin
- Continental collision
- Convergent boundary
- Décollement
- Divergent boundary
- Extensional tectonics
- Fault block
- Fenster
- Fold and thrust belt
- Fold mountains
- Foreland basin
- Graben
- Half-graben
- Horse
- Horst
- Horst and graben
- Inversion
- Klippe
- List of tectonic plate interactions
- Mélange
- Mountain formation
- Nappe
- Obduction
- Orogeny
- Passive margin
- Plate tectonics
- Pull-apart basin
- Rift valley
- Rift
- Saddle
- Strike-slip tectonics
- Structural basin
- Suture
- Syneclise
- Terrane
- Thick-skinned deformation
- Thin-skinned deformation
- Thrust tectonics
|
|---|
| Fracturing |
- Columnar jointing
- Dike
- Exfoliation joint
- Fissure
- Joint
- Vein
|
|---|
| Faulting |
- Asperity
- Cataclasite
- Cataclastic rock
- Detachment fault
- Disturbance
- Fault friction
- Fault mechanics
- Fault scarp
- Fault trace
- Thrust fault
- Transfer zone
- Transform fault
|
|---|
| Foliation and lineation |
- Cleavage
- Compaction
- Crenulation
- Fissility
- Oblique foliation
- Pressure solution
- Rock microstructure
- Slickenside
- Stylolite
- Tectonic phase
- Tectonite
|
|---|
| Folding |
- Anticline
- Chevron
- Detachment fold
- Dome
- Homocline
- Monocline
- Syncline
- Vergence
|
|---|
| Boudinage | |
|---|
| Kinematic analysis |
- 3D fold evolution
- Paleostress inversion
- Paleostress
- Section restoration
|
|---|
| Shear zone |
- Mylonite
- Pure shear
- Shear
|
|---|
Category
|