GUJRAT RAJYA NA KARMCHARIO NE SATAMA PAGAR PANCH NA BAKI LABH BABAT GUJRAT RAJYA KARMCHARI MAHAMANDAL NO LETTER. VANCHVA LAYAK.

GUJRAT RAJYA NA KARMCHARIO NE SATAMA PAGAR PANCH NA BAKI LABH BABAT GUJRAT RAJYA KARMCHARI MAHAMANDAL NO LETTER. VANCHVA LAYAK.Because the Mount Cayley massif is rich in coarse proximal pyroclastic deposits, some of them hydrothermally altered, it is especially prone to slope failure and debris avalanches.[4] At least three major debris avalanches have occurred from the western slope in the last 10,000 years, all of which blocked the Squamish River and formed temporary lakes upstream. The first and largest event about 4,800 years ago produced a 200,000,000 to 300,000,000 m3 (7.1×109 to 1.06×1010 cu ft) debris fan exposed along the Squamish River. A 0.5 to 40 cm (0.20 to 15.75 in) thick sequence of silts, sands and pebbles interbedded in the debris fan suggests that it may be the product of two major, closely spaced, debris avalanches rather than a single event. Another large debris avalanche about 1,100 years ago deposited material immediately upstream of the mouth of Turbid Creek. The third event followed about 500 years ago with the deposition of two diamicton units along Turbid Creek and was the smallest of the three major prehistoric debris avalanches. A lack of organic and paleosol horizons between the two units implies that they most likely represent separate surges within the same debris avalanche event.[11]

        At least three smaller scale debris avalanches have occurred in historic time. A 5,000,000 m3 (180,000,000 cu ft) landslide occurred in 1963 with the failure of a large volcanic block consisting of poorly consolidated tuff breccia and columnar-jointed dacite. The mass slid into Dusty Creek where it quickly fragmented into an aggregate then travelled roughly 1 km (0.62 mi) downstream where it entered the broader flatter valley of Turbid Creek for an additional 1 km (0.62 mi). Both creeks were blocked by the event, resulting in the creation of lakes that eventually overtopped and breached the landslide dam to produce floods and possibly debris flows which in turn swept down Turbid Creek far beyond the landslide terminus.[7] In June 1984, a major rockslide and debris flow resulted from a 3,200,000 m3 (110,000,000 cu ft) collapse at the head of Avalanche Creek. The debris flow reached the mouth of Turbid Creek where it destroyed a logging road bridge and blocked the Squamish River, introducing massive quantities of sediment.[6] The third event took place along Turbid Creek in June 2014 and involved a debris flow that removed part of the Squamish River Forest Service Road.