Sedimentary Depositional Descriptions

We can tell that qal 6 terrace level is lower than

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We can tell that Qal 6 terrace level is lower than Qal 5. Qal 6 does have a paired terrace level that is across the valley in the northwest corner of section 14. Qal 7 The youngest of the 7 terrace levels at Ghost Ranch. This terrace is believed to be a fluvial terrace due to no basement rock on the side of the terrace and how close it is elevation wise to Hal 1. It does have a pair across the valley straight to the north and that terrace there appears to be a strath terrace. Qalu Qalu here at the Ghost Ranch is made up of a certain number of terraces. The problem is that what terraces make up Qalu change depending on where you go here at the ranch. Therefore, it is hard to put the correct age on Qalu. Qls (Quaternary Landslide) – The Quaternary landslide deposits are all over the ranch. One can find large deposits of the Qls around Kitchen Mesa and Fault Bute. The unit of Qls consist of broad range of mass wasted sediment, such as Dakota, Morrison, Todilto, Entrada, and in some spots a small amount of Upper Chinle. We see above Fault Bute that we have mass wasted Dakota, and Morrison on top of Todilto and Entrada in areas. Surrounding Kitchen Mesa we can clearly see that we have a large amount of Qls that has mass wasted down on top of Upper Chinle and over some Qal. That mass wasting Qls consists of possibly a little Morrison, a lot of Todilto, and Entrada. We can infer that the shifting of the normal faults could have possibly caused these large landslides. Therefore, 5
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the Qls has to be older than the normal faults, and that it is also older than Qal because we find places where there is mass wasting on top of Qal. Hal (1 and 2) The Holocene terrace levels here at Ghost Ranch consists of two levels first the older of the two Hal 1and then Hal 2. The Holocene alluvium is the youngest alluvium here at Ghost Ranch. The Hal terraces can be both fluvial and or strath terraces. Most of the time Hal is going to be fluvial terraces. Located throughout the Hal are planar-laminated to planar-thinly bedded pebbly sands, mud and gravel beds, that fill valley bottoms. The gravel located within the Hal consists of pebbles, minor cobbles, and some boulders. The sand is usually very fine to medium grained, and moderately sorted. The color of Hal throughout the ranch varies from a dark red to lightish red/pink, to a tan/yellow. The Hal is very loose and very susceptible to erosion, as to why throughout the valleys one will find large areas of major erosion, which is named Hal 2. The Hal 2 is eroding the older higher Hal 1; many believe that this intense amount of erosion is due to over grazing of cattle throughout the ranch. To ease the amount of erosion taking place the ranch has began to limit the amount of cattle grazing on the ranch to better preserve the natural environment of the ranch. Works Cited "Ghost Ranch and Vicinity." Geologic Tour . N.p., n.d. Web. 16 May 2015. 6
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