Lithological Unit

Formation Group

Description

Stability Class

Category

Ca

Northern Karakorum Terrane

Black slate, phyllite, arkose, Lun Shale, Gircha and Misgar Slate.

Highly Stable

D

Cv

Kohistan Terrane and Shyok Suture Zone ―Kohistan Arc Sequence

Calc-alkaline andesites, high Mg tholeiites and boninites

Very Highly Stable

E

Sv

Kohistan Terrane and Shyok Suture Zone ―Kohistan Arc Sequence

Basaltic andesite, rhyolite, pryroclastic flows, ignimbrite and volcanic breccias

Very Highly Stable

E

Pm

Northern Karakorum Terrane

Permian Sedimentary Rocks: Permian massive limestone

Less Stable

B

Kb

Karakoram Batholith

Trondhjemite, calc-alkaline gabbo-diorite, hornblende cumulates, Plutons. Biotite ± muscovite ± garnet leucogranite

Less Stable

B

Ssm

Kohistan Terrane and Shyok Suture Zone

Suture mélange (limestone, quartize and serpenite in a shely matrix

Less Stable

B

Skm

Southern Karakoram Metamorphic Complex

Paragneisses including interhanded pelite, marble, amphibolite with rare ultramafic lenses (Panmah unit). Pelites containing micas, garnet, staurolite, kyanite, sillimanite + muscovite and sillimanite + K-feldspar assemblings metamorphosed. Low P-T pelites aroun the Chinkiang valley contain chloritoid + chlorite + biotite.

Moderately Stable

C

Tr

Northern Karakorum Terrane

Triassic Massive Limestone and Dolomite with distinct conglomerate horizon; Slate

Moderately Stable

C

Y

Kohistan Terrane and Shyok Suture Zone ―Kohistan Arc Sequence

Limestone containing Orbitolina sp. and Radist sp. Sandstone, shale and meta-volcanic rocks

Moderately Stable

C

HPU

Karakoram Batholith

Plagioglacase + Quartz + horneblende + biotite ± garnet ± K-feldspar

Very Highly Stable

E

GB

Karakoram Batholith

Plutonic unit (k-feldspar + quartz + plagioclase + bioite + garnet)

Very Highly Stable

E

GL

Glacier/snow

Least Stable

A

Gm

Kohistan Terrane and Shyok Suture Zone ―Kohistan Arc Sequence

Meta-sedimentary rocks, greenschist facies slate, phyllite and psammite; protoliths; Peshmal schists; granties

Highly Stable

D

Ec

Besal Eclogites

Omphacite-garnet + Quartz + rullite ± amphibolite ± metamorphosed phengite eclogites, Protoliths

Highly Stable

D

Categories contribution in the hazard in the study area on the basis of their stability.

A (Very Highly Stable), B (Highly Stable), C (Moderately Stable), D (Less Stable), E (Least Stable).