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IMB Traditional Cache

Hidden : 12/7/2008
Difficulty:
2.5 out of 5
Terrain:
1 out of 5

Size: Size:   small (small)

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Geocache Description:

Traditional cache on the Iron Mask Batholith.

The cache is a small custom camo'd lock n lock which contains a log, pencil, sharpener, and small trade items. Due to the size please keep trade items small.

This cache will require some looking and perseverance, as the coords put you 30 feet from the location. It will be obvious when you stand at the 'exact' coords.

I stopped here after a Great Day of caching and wondered about the history of the area seen from the magnificant view in front of me. So I did a little research and below is what I found in it's simplist form. It gave me quite the appreciation for the gem of a city and province we live in.

The Iron Mask batholith (large body of igneous rock formed beneath the Earth’s surface by the intrusion and solidification of magma) lies in the southern part of the Quesnel trough, also known as the Nicola belt. The most important pre-Tertiary rocks in this belt are Upper Triassic volcanic and sedimentary rocks of the Nicola Group. The batholith is a subvolcanic, multiple intrusion which is comagmatic (said of igneous rocks that have a common set of chemical and mineralogic features, and thus are regarded as having been derived from a common parent magma) and coeval (can technically describe any two or more entities that coexist, it is most typically used to refer to things that have existed together) with the Nicola rocks. It is situated along the southwest side of a regional northwest trending fracture zone and is itself cut by numerous northwesterly faults.

The batholith comprises two major northwest trending plutons (a large body of igneous rock formed when magma is injected into the surrounding country rock and crystallizes) separated by 6 kilometres of Eocene Kamloops Group volcanic and sedimentary rocks.

The Tertiary rocks occupy what appears to be a graben (the result of a block of land being down thrown producing a valley with a distinct scarp on each side) structure resulting from renewed fault movement around the margins of the plutons during Paleocene or Early Eocene time. The larger pluton, the 18 kilometre long southern part of the batholith, is called the Iron Mask pluton. The smaller Cherry Creek pluton farther northwest, outcrops on either side of Kamloops Lake.

The combined exposure of the batholith, including the intervening younger rocks, is about 33 kilometres long and 5 kilometres wide. Sedimentary and volcanic rocks of the Kamloops Group unconformably overlie the Nicola rocks and the Iron Mask batholith. These include tuffaceous (A sandstone which contains volcanic ash) sandstone, siltstone and shale with minor conglomerate, as well as basaltic (Basalt is a common extrusive volcanic rock. It is usually gray to black and fine-grained due to rapid cooling of lava at the surface of a planet) to andesitic (The class of rock which crystallizes from silicate minerals at intermediate temperatures is sometimes referred to as "andesitic" rock) flows and agglomerates (from the Latin 'agglomerare' meaning 'to form into a ball', are coarse accumulations of large blocks of volcanic material that contain at least 75% bombs) with minor dacite (an igneous, volcanic rock with a high iron content), latite (extrusive igneous rock very abundant in western North America. Usually coloured white, yellowish, pinkish) and trachyte (a light-colored igneous rock consisting essentially of alkali feldspar).

Enjoy the cache, be safe and enjoy the view in front of you.

Additional Hints (Decrypt)

Abg Va Orgjrra

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)