What mountain range is the mother lode located

Ochoco Mountains, Oregon
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  1. Curiosity has Found the Mother Lode of Clay on the Surface of Mars
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  3. California Gold- Sierra Nevada river of gold-ancient El Dorado- source of the great strike of '49

Lookout Mountain is the tallest peak in the Ochocos, and from here you'll have a panoramic view of the Cascade Range unlike any other. The view is truly spectacular! Dreis in for mercury extraction. Mercury comes primarily from the mineral cinnabar, which is sparsely but widely scattered throughout the Ochocos, particularly at the base of Lookout Mountain.

Mercury was used for thermometers, various instruments, amalgam tooth fillings, a topical disinfectant, laxative and a de-wormer for children. Once mercury's toxicity was understood it was phased out of common usage, and most of the mines in the region began to shut down by the s.

Curiosity has Found the Mother Lode of Clay on the Surface of Mars

Mercury still has many uses, however, including mercury vapor, which enables the illumination of fluorescent lights. Skip to main content. Top Picks Road Trips Itineraries.

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View 25 Photos. Please respect the outdoors by practicing Leave No Trace. Learn more about how to apply the principles of Leave No Trace on your next outdoor adventure here.


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    Cons None. Trailhead Elevation 5, Net Elevation Gain 1, Features Backcountry camping. Now deep in the earth's crust and under the ocean, the rock is usually under a lot of pressure.

    There's seawater in the rock, just like there can be groundwater in rock on land, but it too is under a lot of pressure. And should you add heat either because the rock is being pushed down into the mantle, or magma is upwelling against the rock the water becomes hot and pressurized. Further, being rich in chlorine ions, the seawater infused in the rock is chemically better at dissolving certain minerals, like gold, out of the surrounding rock.

    So even if there's only a little bit of gold spread out in the rock, the hot pressurized underground seawater can dissolve large amounts of it. As the fissures opened up, the mineral-rich underground water—formerly under intense heat and pressure—was able to flow out of the surrounding rock into the fissures and rise toward the surface. The cooling and depressurization precipitated the minerals out of the water, including the gold, creating "cracks" of solid gold and quartz and so-forth wherever a new fissure formed.

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    California Gold- Sierra Nevada river of gold-ancient El Dorado- source of the great strike of '49

    With every new fissure came new escapes of hot steamy mineral-rich water, and new precipitated gold veins. The fissures kept accumulating more and more thin cracks of gold, over and over, for many, many years. As these gold-filled fissures were gradually exposed by erosion and weathering, flakes of underground gold could be washed downstream, which million years later would lead prospectors back up to the original seams of the Mother Lode.

    Can I ask a couple follow-up questions to understand a few things better? So the hot, pressurized water carrying the dissolved gold up toward the surface was also carrying other minerals with it that were also dissolved out of the rock? And when cooled and depressurized, those minerals would also form some kind of "veins" or other concentrations elsewhere, depending on the minerals' properties?

    Can I infer that the Mother Lode gold originated from the island crust rather than the North American plate, since that vein is located distinctly on the west side of the mountain range? Was there anything remarkable about the tract of rock from where the gold originated, as far as the quantity of gold it contained, before the whole collision process occurred? Or would any ol' plot of crust produce a similarly sized deposit of gold, given similar conditions amount of heat, pressure, size of "impact zone" of collision, duration of collision, etc.