GopSea: Midterm Examination Flashcards
The paleo-tethys subducted under this terrane
asiatic hunic terrane
the meso-tethys subducted under this terrane
cimmerian terranes
during this time, there are changes in the tectonics due to the collision of India to Eurasia
Eocene
In this part of Southeast Asia, clockwise rotation occured as a result extrusion tectonics
Indochina
The Ninety-East Ridge was once a _ separating India and Australia
transform fault
These are markers of suture zones except one:
a. uplifted oceanic crust
b. thrust fault
c. blue schist
d. uplifted marine sediments
e. active volcanic arc
e. active volcanic arc
Because of this event, SEA transitioned from a collisional regime into extensional regime
Himalayan Orogeny
This phenomenon is observed in the reversal of the displacement of faults
Fault Polarity Reversal
Kalimantan is present day
Borneo
Burma is present day
Myanmar
Select which one does not have active volcanism:
a. sumatra
b. java
c. halmahera
d. sangihe
e. malayan peninsula
e. malayan peninsula
this fault serves as the suture zone between Western Burma Block and the rest of Southeast Asia
Sagaing Fault Zone
of the selection below, which one is the oldest rock:
a. E. Malayan Granite
b. SW. Thailand -E Burma Granite
c. N. Thailand - W. Malayan Granite
d. The Philippine Ophiolites
e. Both A and D
c. N. Thailand - W. Malayan Granite
Of the selection below which one is not part fo the Ophiolite sequence:
a. peridotite
b. gabbro
c. sheeted dikes
d. chert
e. none of the above
d. chert
the Bentong-Raub Suture serves as the boundary between
Indochina and Sibumasu
Java Fault, Sumatra Fault, and the Philippine Fault are:
Trench Parallel Faults
the western belt granites are:
I-type granites and S-type granites
these describe S-type Granites except one:
a. lower aluminum levels
b. lower levels of Na and Ca
c. results from the partial melting of sedimentary rocks
d. all of the above
a. lower aluminum levels
this part of SEA contains most, multiple different fold belts:
Indochina
these structures would indicate a collisional regime except:
a. trough
b. trench
c. fold belts
d. tilted marine sedimentary basins
e. ophiolites
b. trench
the Sorong Fault Zone is a:
Left Lateral Strike-slip Fault
the Sunda Trench is collectively composed of:
java trench and sumatra trench
which one does not belong to the group:
a. sumatra arc
b. java arc
c. philippine arc
d. malaysian peninsula
e. none of the above
d. malaysian peninsula
In an area with multiple collisions and geological disruptions like Indochina, most likely the drainage pattern would be?
Dendritic pattern
These are currently on a collision course closing remnants of the Molluca Sea Plate
Halmahera and Sangihe Arcs
During this time Australia starts the separation from the Gondwana:
Cretaceous
the continents North America, Eurasia, Kazakhstan, and Siberia composes this plate
a. greenland
b. laurasia
c. gondwana
d. avalonia
e. none of the above
e. none of the above
the boundary between these blocks serves as pathway for the Luoc/Red River
indochina and south china
this country is in the eastern boundary of Laos:
Vietnam (?)
These countries have claims or territory in Borneo except:
a. Brunei
b. malaysia
c. indonesia
d. philippines
e. vietnam
e. vietnam
In what direction does the boundary between Indo-Australian diverge from Antarctica?
Northeast
When did Cenotethys closed down?
Eocene
this was a triple junction, accommodating the northward rifting of India;
a. ninety-east ridge
b. mid-indian ridge
c. southeast indian ridge
d. southwest indian ridge
e. none of the above
e. none of the above
this separates West Burma from the rest of Sunda Plate
a. sagaing fault
b. red river fault
c. bentong raub suture
d. aliaoshan suture
e. none of the above
e. none of the above
these describe I-type Granites except one:
a. typically lower aluminum levels
b. lower levels of Na and Ca
c. Results from the partial melting of igneous rocks
d. all of the above
e. none of the above
b. lower levels of Na and Ca
