Saturday, October 26, 2019

HISTORY/GEOLOGY 01 - DALHOUSIE

GEOLOGY AND TOPOGRAPHY- DALHOUSIE -CHAMBA- BHARMAUR
When you reach Pathankot, you have arrived close to the foot of this magnificent mountain range called the ' Dhauladhar ' , or Outer Himalaya. During a  breathtaking journey, you encounter Pine, Oak, and Deodar trees, of the Coniferous varieties, leaving behind cactus, tangled maze of barbery, and other plants and trees of semi-tropical vegetation. Almost the entire expanse of the oblong shaped Dhauladhar is clad with coniferous forests from end to end , save the iced toppings.!
On the approach from the  plains, the first rock strata met with are the Tertiary series of the Shivalik area, composed of Sandstones and Conglomerates.
The main range of the Dhauladhar is composed of an igneous rock called Gneissose granite. In Dalhousie, The granite ends on the western slope of Tehra (Moti Tibba), where it comes in contact with Silurian Slate. Orographically, it terminates at the Ravi river.
Half way between Khajjiar and Chamba, the northern margin of Granite is also in contact with Silurian rock strata, consisting of Micaceous and Quartsoze schists and slate, some of them near Chamba, which are being used as good indegenised roofing and flooring material in this region since prehistoric times of yore.
The  origin of this range dates back to the end of the Eocene, or the beginning of the Miocene division of the Tertiary period, when it actually erupted., before the existence of mankind  over two million years ago.
On the Paangi road near Masrund, Carbo - Triassic rocks are met with , composed of Blaini Conglomerate in two bands, separated by trap and limestone.
Legend has it that the rivers always flowed at their present levels , the reason being that the rate of elevation and erosion have always been constant.
An interesting theory is widely accepted in Chamba, that the Raavi once flowed over the Chaugan ,( formerly the state Polo ground, and currently the parade ground), however , very shallow, and there were stepping stones to the temple of ' Hari Rai ', near the telegraph office. That it did so is certain but not in the human age ,  at least two million years ago..

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