Main Boundary Thrust
E753963
The Main Boundary Thrust is a major geological fault in the Himalayas that marks the boundary between older, metamorphosed rocks and younger sedimentary formations, playing a key role in the mountain range’s tectonic evolution.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
geological fault
ⓘ
tectonic boundary ⓘ thrust fault ⓘ |
| age |
Cenozoic
ⓘ
mainly Miocene to Pliocene activity ⓘ |
| alsoKnownAs | MBT NERFINISHED ⓘ |
| associatedWith | India–Eurasia collision NERFINISHED ⓘ |
| controls | distribution of Siwalik Group sediments ⓘ |
| deformationStyle | fault‑related folding and thrusting ⓘ |
| displacementSense | north side up relative to south side ⓘ |
| exposedIn |
Lesser Himalayan foothills
ⓘ
Siwalik Hills NERFINISHED ⓘ |
| faultType | south‑verging thrust ⓘ |
| forms | major structural discontinuity in the Himalayan arc ⓘ |
| formsBoundaryOf | foreland basin of the Himalayas ⓘ |
| formsPartOf | Himalayan thrust belt NERFINISHED ⓘ |
| geometry | listric to planar thrust surface in cross‑section ⓘ |
| kinematics | north‑over‑south thrusting ⓘ |
| linkedWith |
Himalayan Frontal Thrust system
NERFINISHED
ⓘ
Main Central Thrust system NERFINISHED ⓘ |
| locatedIn |
Bhutan
NERFINISHED
ⓘ
Himalayas ⓘ India ⓘ Nepal NERFINISHED ⓘ Pakistan ⓘ |
| marksBoundaryBetween |
Lesser Himalaya
NERFINISHED
ⓘ
Sub‑Himalaya NERFINISHED ⓘ |
| movementType | compressional ⓘ |
| olderThan | Himalayan Frontal Thrust NERFINISHED ⓘ |
| orientation | generally east–west trending ⓘ |
| parallelTo | Himalayan mountain front ⓘ |
| partOf | Himalayan orogen NERFINISHED ⓘ |
| playsRoleIn |
tectonic evolution of the Himalayas
ⓘ
uplift of the Himalayan range ⓘ |
| relatedProcess |
crustal shortening
ⓘ
mountain building in the Himalayas ⓘ |
| separates |
Lesser Himalayan crystalline and metasedimentary rocks from Siwalik molasse
ⓘ
older metamorphosed rocks ⓘ younger sedimentary formations ⓘ |
| significantFor |
seismic hazard in Himalayan region
ⓘ
stratigraphic correlation in the Himalayas ⓘ |
| studiedInDiscipline |
seismology
ⓘ
structural geology ⓘ tectonics ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
| youngerThan | Main Central Thrust NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.