An Excursion to Klang Gates Quartz Ridge at Taman Melawati, Selangor this November 28, 2010 (Sunday), will be co-organized by the Pathfinders Group of MNS Selangor Branch lead by Christopher Leo and MNS Perak GCT SIG.
Christopher will lead the excursion and highlight on the conservational aspect of the ridge where the Kuala Lumpur Outer Ring Road (KLORR) is proposed to be developed. MNS Perak Branch GCT SIG will focus on the geological interpretation of the ridge.
Date: 28 November 2010, Sunday
Time: 5.00 am depart from Ipoh to BP station at Taman Melawati, Selangor.
Meeting Place: Shall be determined when enough participants from MNS Perak have registered.
Method of transport: Car pooling.
For MNS Perak’s member, Robin’s car can accommodate max. of 4 passengers at RM10 per passenger. For further information on the excursion please call Robin Leow at 012-5217526 or email at email@example.com.
The following is a brief information on the conversational and geological aspect of the Klang Gates Quartz Ridge is noted below.
Klang Gates Quartz Ridge (KGQR) is the longest quartz ridge in the world spanning 14 km and soars to 380 m at its highest point. Survey indicated at least 265 plant species thrive at its surroundings and at the ridge what botanist called an island habitat of which 5 are endemic.
Isolated, vegetation at the ridge top differs from those of surrounding areas. The grass-looking Eulaili milsumii is a rare plant that grows only on the ridge and nowhere else in the world. Other endemics plants are small woody shrub, Aleisanthia rupestris, the small tree llex praetermissa, the wiry herb Borreria pilulifera and the ground herb Henckelia primulina. A National Parks and Wildlife Department survey carried out in 1985 found the tracks of 5 rare animals, the serow but it’s anyone guess how many are still around today.
In 1958, a retaining wall was built at the natural gap along the ridge to form the KGQR dam to hold the water whilst the whole ridge acts as the foundation. Will the proposed Kuala Lumpur Outer Ring Road (KLORR) cutting through KGQR, Selangor State Park, the forest reserves of Hulu Gombak, Ampang and Hulu Langat or any alignments affect the fragile eco-system?
by Robin Leow of MNS Perak branch Geology, Caving and Trekking (GCT) SIG
The Klang Gates Quartz Ridge is composed almost entirely of pure white quartz. It has been traced for a lateral distance of more than 16km, and its width varies from only a few meters at some places to as much as 180m.
It was formed by the deposition of hydrothermal quartz along a near-vertical zone of weakness in the granite. As early formed quartz masses and veins cooled and contracted, new fractures were formed and were filled with later veins of crystalline quartz.
Repeated quartz injection and deposition, contraction and fracturing have produced a complex interlacing network of large composite and small simple quartz veins in many places carrying the remnants of partly or almost wholly altered granite.
Much of the body is of massive quartz, although lenticular vugs with excellent crystalline quartz aggregates are common. This quartz dyke is characteristically formed of pure quartz with no traces of tin or gold mineralization.