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GEOLOGICAL TRIP : SURROUNDING AREA OF GUNUNG JERAI, KEDAH

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on 10 December 2013

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Transcript of GEOLOGICAL TRIP : SURROUNDING AREA OF GUNUNG JERAI, KEDAH

THANK YOU
1. Seri Perigi (waterfall) cont.
have 2 tier waterfall
inclined uniformly
cross-bedding signature found in thick layer
the water and rocks is brownish in colour-physical@chemical weathering
1.Seri Perigi (waterfall)
Sketching of Seri Perigi Waterfall
Tanjung Jaga
Sketching Of Tanjung Jaga
3.Merbok Waterfall
Sketching of Merbok Waterfall
GEOLOGICAL TRIP : SURROUNDING AREA OF GUNUNG JERAI, KEDAH
The Strike and Dip of joint and Layer
Figure 1 : dipping : 65
strike : S 45 W
Figure 2. dipping : 45
strike : S 50 W
Why waterfall exist in this area
Where Does The Water Source Came from?
Rain From
Mountain Parts
River@Ocean
Some travel through cracks of the rocks and accumulated at one area
Relationship Between River Stream And the Surrounding Rocks:
V-shape (pointy front)
direction is parallel to the stream
due to erosion
Merbok Waterfall cont.
Most of the rock is granite.
There is intrusion of pegmatite.
Xenolite
Chemical weathering
Plunge of pool
Granite
Igneous rock
Felsic
Pheniritic ( coarse grain)
Grain size can range from ~2mm all the way to 10mm, and larger
hard and resistant to weathering. 
Minerals Inside Granite and Pegmatite
Granite:
Feldspar
Quartz
Biotite
Pegmatite:
Quartz
Feldspar
Biotite
Muscovite
Tanjung Jaga cont.
In-situ evidence for pegmatite and
quartz intrusion into metamorphic rock.
Quarzite
(metamorphic rock)
Pegmatite
Principle Of Geology Involved:
Principle of Intrusive Relationship
Older
Younger
Rocks due to weathering
Divide by two : Physical : Chemical
Physical : due to wave. Combination of wind and water
Chemical : the colour of sea water change to the mud colour

Group Members:
Syahirah bt Ahmad Fadilah
Nurina Auni bt Ismail
Muhamad Hafizuddin bin Mohd Mansor
Nadhir Rusli bin Badaruddin
Farah Wahidah binti Fazari
Abu Zaid Bin Ahmad
Origin Of Xenolith Rock
Definition : a rock that trapped an another type of rock
Formed when the magma was cooling
Consist of quartzite
Quartz heated = magma
The magma cooled
Xenolith was formed
Minerals That Can be Obtained Here
Muscovite Mica
Quartz Prophyritic
Quartz Aphanitic
Full transcript