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CREATION ART

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  • Photobucket Songs of Earth's Creations. In an endless cycle of eons she creates and destroys masterpieces, reusing her building materials to create anew. From death comes life.Photobucket
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    Monday, September 21, 2009

     

    Mount Olympus - Greece

    Mount Olympus - Mytikas (Throne of Zeus)



    Mount Olympus as seen from Litochoro

    http://en.wikipedia.org/wiki/Mount_Olympus

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    Olympus' highest peak, Mýtikas or the "Throne of Zeus"

    Mount Olympus (Greek: Όλυμπος ; also transliterated as Ólympos, and on Greek maps, Óros Ólimbos) is the highest mountain range in Greece, its highest peak Mýtikas rising to 2,919 metres high (9,577 feet).[1] Since its base is located at sea level, it is one of the highest peaks in Europe in terms of topographic prominence, the relative altitude from base to top. It is located in the borders of Thessaly and Macedonia, about 100 km away from Thessaloniki, Greece's second largest city.

    Mount Olympus is noted for its very rich flora with several endemic species. The highest peak on Mount Olympus is Mitikas at 2,919 metres high (9,577 feet), which in Greek means "nose" (an alternative transliterated spelling of this name is "Mytikas"). Mitikas is the highest peak in Greece, the second highest being Skolio (2912 m).

    In Greek mythology the mountain was regarded as the "home of the gods", specifically of the Twelve Olympians, the twelve principal gods of the ancient Hellenistic world.[2]


    Coin

    The Mount Olympus and the national Park around it was recently selected as main motif for a high value euro collectors' coin: the €10 Greek National Park Olympus commemorative coin, minted in 2005. On the reverse, the War of the Titans on Mount Olympus is portrayed along with flowering branches on the lower part of the coin. Above the scene is written, in Greek, "National Park Olympus", while on the bottom of the coin, close to the edge, is the issuing year.

    Climbing

    Climbing Mount Olympus is a non-technical hike, except for the final 30 minute section from Skala summit to Mitikas summit, which is YDS class 3 rock scramble. It is estimated that 10,000 people climb Mount Olympus each year, most of them reaching only the Skolio summit (which does not involve rock scramble). Most climbs to Mount Olympus start from the town of Litochoro, which took the name City of Gods because of its location on the roots of the mountain. From there a road goes to Prionia, where the hike begins

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    Teide volcano on Tenerife, one of Spain's Canary Islands

    Photo Gallery: Opera House, Spanish Volcano Among World Heritage List Adds

    The Teide volcano on Tenerife, one of Spain's Canary Islands, is among the new sites added to the World Heritage list.

    Teide was selected because of its natural beauty and important geological history. The volcano is more than five million years old, so it provides valuable geological information about the evolution of oceanic islands.

    The volcano's summit reaches to an elevation of 12,188 feet (3,715 meters), making it the third largest volcano on Earth. It is toped by the Las Canadas caldera, a 7- to 12-mile-wide (12- to 20-kilometers-wide) depression created by an ancient volcanic eruption.

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    Video-

    Turn off audio, many commericials and continued narration

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    http://volcano.oregonstate.edu/volcanoes/volc_images/africa/tenerife.html

    WebTenerifeUK.co.uk

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    1. Mount Teide or, in Spanish, El Teide, is the highest elevation of Spain and the islands of the Atlantic is 3.718 meters. Is an active volcano which last erupted in 1909 from the El...
      en.wikipedia.org/wiki/Teide - 115k - Cached
    2. Teide (28.3N, 16.6W) is the third largest volcano on Earth. ... Teide volcano, Tenerife, Canary Islands | Permalink | (1) Comments | Post a Comment ...
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    Saturday, September 12, 2009

     

    Kasha-Katuwe Tent Rocks - Geological History

    For Photo Gallery of the Monument Structures, see post below.

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    Figure 2Index map showing the location of the monument.

    Introduction

    Kasha-Katuwe Tent Rocks National Monument is on the southeast side of the Valles and Toledo calderas, large collapse features that formed during voluminous eruptions in the Jemez Mountain volcanic field 1.61 and 1.25 million years ago. Tent Rocks encompasses a fascinating landscape in the southeastern Jemez Mountains. Kasha-Katuwe means 'white cliffs' in Keresan, the traditional language of the nearby Pueblo de Cochiti. Delicately layered sand, gravel, volcanic ash, and tuff of the Peralta Tuff Member of the Bearhead Rhyolite and sand and gravel of the Cochiti Formation, which are older units (2 to 6 Ma) in the Jemez Mountain volcanic field, have been eroded into fragile to robust spires with balanced rocks perched on top (Figures 1 and 3). The hoodoos, erosional cones, and pedestal rocks that characterize Tent Rocks form as the result of differential erosion (Smith, 1996). Water and, to a lesser extent, wind erosion preferentially attacks the moderately-indurated sand and ash grains around the base of large blocks in the gravel-rich beds. Eventually, the gravel clasts rest on pedestals, thus protecting the underlying sand and ash from further erosion. As time passes, the capstones are gradually undermined and the rocks topple, leaving an unprotected cone.


    Figure 3Balanced rocks and erosional cones in the Peralta Tuff (white unit at the base of the cliff) and Cochti Formation (gray unit higher in the cliff) near the entrance to Tent Rocks.

    Regional Setting

    Kasha-Katuwe Tent Rocks National Monument lies on the southeastern margin of the Jemez volcanic field, a volcanic system that has been active for the past 15 million years. The volcanic field formed at the intersection of the Rio Grande rift, an extensional feature that bisects the state of New Mexico, and the Jemez lineament, an ancient northeast-trending structure that has been a locus of volcanism for the last 10 million years.

    Geology of the Tent Rocks Area

    Two main rock units are exposed in the monument. The older unit is the white to orangish-tan Peralta Tuff Member of the Bearhead Rhyolite and the younger unit is the gray Cochiti Formation. The uppermost part of the Peralta Tuff and the Cochiti Formation are exposed near the parking lot at Tent Rocks, while lower Perlata Tuff is exposed on the northwest side of a down-to-the-southeast splay of the Pajarito Fault zone in the slot canyon on the northeast portion of the monument (Smith et al., 1991; Smith, 1996). The Peralta Tuff was deposited during an episode of intense rhyolitic volcanism in the Jemez Mountains 6.5 to 7 million years ago (Justet and Spell, 2001). At least twenty vents that extruded rhyolite domes and flows (Bearhead Rhyolite) have been identified in the southern Jemez Mountains (Smith, 1996), and several more vents have been recognized in the northeast wall of the Valles caldera and in the northern Jemez Mountains (Loeffler, 1988; Kempter et al., 2004, Gardner et al., 2006). The distribution of the Bearhead Rhyolite suggests that a magma chamber comparable in size to the chamber that created the Quaternary Valles and Toledo calderas lay beneath the Jemez Mountains in late Miocene time (Justet and Spell, 2001). Justet and Spell (2001) speculate that a caldera did not form in late Miocene time because extensional faulting associated with the Rio Grande rift may have kept the system vented, preventing the buildup of fluid and gas pressure that often triggers caldera eruptions.

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    Figure 4Geologic map of the Tent Rocks area modified from Lynch et al. (2004). The entrance to the monument is marked with a black box and the arrow points to the slot canyon in Figure 1.

    Approximately 35 eruptive events are recorded in the Peralta Tuff in the vicinity of Tent Rocks (Smith, 1996). Pumice and ash-fall layers derived from distant vents are the most common indication of these events; however, 14 tuffs that erupted from nearby sources, including Bearhead Peak, the prominent peak located about 5 miles to the northeast, are also preserved in the section at Tent Rocks. The tuffs and tephras are interbedded with sand, gravel, reworked tuff, and ancient soil horizons (Smith and Katzman, 1991). The more coarse-grained Cochiti Formation overlies the relatively fine-grained Peralta Tuff. The glassy rhyolite and pumice in the Peralta Tuff gives way to devitrified rhyolite clasts in the Cochiti Formation, which causes the Cochiti Formation to have a gray color. Devitrification is a process whereby glass is transformed into crystalline minerals. The Cochiti Formation contains very few tephras compared to the Peralta Tuff. Smith et al. (1991) and Smith (1996, 2001) interpret this upsection change in clast composition and grain size to mark the time that erosion breached the cores of the Bearhead Rhyolite domes after rhyolitic volcanism waned about 6.5 million years ago.

    "Apache tears," which are small, rounded pieces of obsidian, are common at Tent Rocks. DO NOT collect them! The obsidian is coming out of glassy clasts in the gravels in the Peralta Tuff and the Cochiti Formation. Groundwater moving through the sediments is hydrating the glass, causing black obsidian to become gray perlite. Often the clasts are not completely hydrated, leaving a core of obsidian surrounded by perlite. The obsidian is easily removed from the fractured perlite by erosion, which results in a concentration of tear-drop shaped obsidian pieces in drainage bottoms.


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    Kasha-katuwe Tent Rocks National Monument.

    Kasha-Katuwe Tent Rocks National Monument

    Tent Rocks:6
    Tent Rocks is truly a magical area! Delicately layered gravels and volcanic ashes of the Peralta Tuff Member of the Bearhead Rhyolite have been eroded into interesting shapes, including spires with balanced rocks at the top. The deposits are about 6.8 million years old and were shed off volcanic domes of the Jemez volcanic field. This scenic area is located about 5 miles northwest of Cochiti Pueblo in Sandoval County.

    Volcanic Banding:7
    Close inspection of the fragile tent rock formations reveals their susceptibility to erosion. Some of the rocks standing farthest away from the cliff have lost their hard caprock and are disintegrating. An examination of the cliff face reveals small ravines leading inward. Wind and water prevail here, scooping holes of all shapes and sizes in the rock and contouring the ends of the ravines into smooth semicircles. As the result of uniform layering of volcanic material, bands of gray are interspersed with beige-colored rock along the cliff face.

    Kasha-Katuwe Tent Rocks is located 40 miles southwest of Santa Fe and 50 miles north of Albuquerque, New Mexico, with the most direct access from Interstate 25. Take the Cochiti Reservoir exit from I-25 to NM Route 22 and follow the signs to Cochiti Pueblo. Turn right at the pueblo water tower (painted like a drum) onto Tribal Route 92 (connects to Forest Service Road 266). Travel 5 miles on a dirt road to the Tent Rocks parking area, which is marked with a sign. This is the only parking area for Kasha-Katuwe Tent Rocks.



































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    Monday, September 07, 2009

     

    earthmother

    http://www.environmentalgraffiti.com/ecology/mother-earth-water-the-lifeblood-of-our-planet/586



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