This video still was taken from our expedition video, Yolly Bolly Expedition shot on location in California. You can view the video for FREE online at our website www.thenatureexplorers.com
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I'm Michael C. Clark Naturalist, Explorer, and Cinematographer. My compañero Loganapithicus and I travel the world in search of unique ecosystems to explore and document cinéma-vérité style. Our expeditions usually take place in an area of five square miles or less within a duration of 7-21 days and we focus on the entire ecosystem plants, animals, geology, weather, and more. We do not specifically seek out, bait, or wait for species, we film what we encounter as we explore the ecosystem on foot.
The purpose of our expeditions is to help in homo sapien's ceaseless quest for knowledge by documenting the ecosystems as they are forever changing with plant Earth as they have for billions of years. Our ecosystem videos can be viewed FREE by anyone and used for nonprofit educational instruction and testing purposes as well as scientific study of the ecosystems. Therefore we have left out narrations and used music in the background when no natural sound is available, ultimately leaving the videos for self interpretation, individual discovery, and for professors to explain or show as examples in a classroom setting.
We are unable to film every species in the selected ecosystems, as it is impossible to get everything in such a short time frame, one could spend an entire lifetime studying an ecosystem of planet Earth and still never see it all. No plant or animal species were harmed during our expeditions, all species are filmed in their natural habitat and are not coerced or paid for any performances. This is Mother Nature's movie if you have script questions please direct them towards her.
View our website www.thenatureexplorers.com
The Yolla Bolly-Middle Eel Wilderness is a federally designated wilderness area located 45 miles (72 km) west of Red Bluff in the state of California. Created by the Wilderness Act of 1964, the land area was originally 170,195 acres (68,875 ha). The wilderness area was enlarged by the California Wilderness Act of 1984, and again by the Northern California Coastal Wild Heritage Wilderness Act of 2006, for a present total of 180,877 acres (73,198 ha).
Most of it (172,998 acres) is managed by the US Forest Service and is within several national forest boundaries which are: Mendocino, Shasta-Trinity and Six Rivers national forests. The balance of 7,879 acres (31.89 km2) is on Bureau of Land Management land. The name is from the Wintun Native American language and means "snow-covered high peak".
Elevations range from 2,700 feet (820 m) to 8,092 feet (2,466 m) at Mount Linn.
The wilderness has Coast Range and Klamath montane, mixed evergreen and Douglas fir forest types. Conifers include the California endemic foxtail pine, ponderosa pine, red and white firs, western white pine, sugar pine and incense-cedar. Other tree species include oaks, cottonwoods, and the rare Pacific yew. The area includes wet meadows and open grasslands supporting abundant deer herds (as well as cattle and sheep). Lower elevations have chamise, manzanita, and ceanothus.
Wildlife in the wilderness includes bear, deer, gray fox, mountain lion, bobcat, coyote, ringtail, northern flying squirrel, fisher and martin. The Northern Spotted Owl can be found here, as well as eagles, hawks, turkey vultures and smaller birds like grouse, quail, and bandtailed pigeon.
Rainbow trout live in most larger streams, such as in the South Fork of Cottonwood Creek, and in Black Rock Lake. The Middle Fork Eel River watershed has summer- and winter-run steelhead and spring-run chinook salmon, but fishing is restricted.
Rocks in the northern mountains are predominantly gray greenstone while the southern mountains include sandstone and serpentine of the Franciscan formation. Circque basins from former glaciers are seen above about 6,000 feet (1,800 m) elevation. Extensive faulting in the rocks makes the region prone to erosion, slumping and landslides. One modern landslide near Ides Cove, on the north flank of Mount Linn, reached more than two miles (3 km) toward the South Fork Cottonwood Creek, upending old-growth forests and leaving large fissures on its perimeter.
Geology (from the Greek γῆ, gê, "earth" and λόγος, logos, "study") is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which they evolve. Geology can also refer generally to the study of the solid features of any celestial body (such as the geology of the Moon or Mars).
Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates. In modern times, geology is commercially important for mineral and hydrocarbon exploration and for evaluating water resources; it is publicly important for the prediction and understanding of natural hazards, the remediation of environmental problems, and for providing insights into past climate change; plays a role in geotechnical engineering; and is a major academic discipline.
In geology, a rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. For example, the common rock, granite, is a combination of the quartz, feldspar and biotite minerals. The Earth's outer solid layer, the lithosphere, is made of rock.
Rocks have been used by mankind through out history. From the Stone Age rocks have been used for tools. The minerals and metals we find in rocks have been essential to human civilization.
Three major groups of rocks are defined: igneous, sedimentary, and metamorphic. The scientific study of rocks is called petrology, which is an essential component of geology.
Rocks are generally classified by mineral and chemical composition, by the texture of the constituent particles and by the processes that formed them. These indicators separate rocks into three types: igneous, sedimentary, and metamorphic. They are further classified according to particle size. The transformation of one rock type to another is described by the geological model called the rock cycle.
Sample of igneous gabbro
Igneous rocks are formed when molten magma cools and are divided into two main categories: plutonic rock and volcanic. Plutonic or intrusive rocks result when magma cools and crystallizes slowly within the Earth's crust (example granite), while volcanic or extrusive rocks result from magma reaching the surface either as lava or fragmental ejecta (examples pumice and basalt).
Sedimentary sandstone with iron oxide bands
Sedimentary rocks are formed by deposition of either clastic sediments, organic matter, or chemical precipitates (evaporites), followed by compaction of the particulate matter and cementation during diagenesis. Sedimentary rocks form at or near the Earth's surface. Mud rocks comprise 65% (mudstone, shale and siltstone); sandstones 20 to 25% and carbonate rocks 10 to 15% (limestone and dolostone).
Metamorphic banded gneiss
Metamorphic rocks are formed by subjecting any rock type (including previously formed metamorphic rock) to different temperature and pressure conditions than those in which the original rock was formed. These temperatures and pressures are always higher than those at the Earth's surface and must be sufficiently high so as to change the original minerals into other mineral types or else into other forms of the same minerals (e.g. by recrystallization).
The three classes of rocks—the igneous, the sedimentary and the metamorphic—are subdivided into many groups. There are, however, no hard and fast boundaries between allied rocks. By increase or decrease in the proportions of their constituent minerals they pass by every gradation into one another, the distinctive structures also of one kind of rock may often be traced gradually merging into those of another. Hence the definitions adopted in establishing rock nomenclature merely correspond to selected points (more or less arbitrary) in a continuously graduated series.
The three main ways rocks are formed:
Sedimentary rocks are formed through the gradual accumulation of sediment: for example, sand on a beach or mud on a river bed. As the sediment is buried it is compacted as more and more material is deposited on top. Eventually the sediment will become so dense that it is essentially rock. This process is known as lithification.
Igneous rocks are rocks which have crystallized from a melt or magma. The melt is made up of various components of pre-existing rocks which have been subjected to melting either at subduction zones or within the Earth's mantle. The melt is hot and so passes upward through cooler country rock. As it moves it cools and various rock types will form through a process known as fractional crystallization. Igneous rocks can be seen at mid ocean ridges, areas of island arc volcanism or in intra-plate hotspots.
Metamorphic rocks are rocks which once existed as igneous or sedimentary rocks but have been subjected to varying degrees of pressure and heat within the Earth's crust. The processes involved will change the composition and fabric of the rock and their original nature is often hard to distinguish. Metamorphic rocks are typically found in areas of mountain building.