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The UnMuseum - Geysers Though the water is hot and under pressure it would never be ejected from geysers with such tremendous force if it were not for the special quality of the rocks in the geyser fields. Geyserite, which is the third necessary condition, is mostly silicon dioxide, is dissolved from the rocks and deposited on the walls of the geyser's plumbing system and on the surface around the geyser. By measuring geyserite deposits on the cone and carbon-dating pieces of wood caught in the geyserite, scientists have estimated that Old Faithful is roughly 300 years old. www.unmuseum.org /geysers.htm   (1772 words)

IngentaConnect Petrography and genesis of spicular and columnar geyserite from t... Domal masses of geyserite, which surround many geyser vents in the Whakarewarewa geothermal area, are formed largely of spicules, spicule columns, and shrub columns. In the geyserite mounds at Whakarewarewa, spicules and spicule columns are common, whereas shrub columns are rare. Interbedding and intercalation of spicular geyserite with shrub columnar geyserite indicate, however, that these different morphologic entities probably formed under similar environmental conditions on the mounds around the geyser vents. www.ingentaconnect.com /content/nrc/cjes/2003/00000040/00000011/art00011   (590 words)

BIOGEOCHEMISTRY OF ANTIMONY AND ARSENIC IN HYDROTHERMAL FLUIDS AND OPALINE DEPOSITS FROM EL TATIO GEYSER FIELD, CHILE Geochemical analyses of opaline deposits (geyserite) and sediment samples consisted of HF dissolution for bulk trace metal analysis, sequential extraction to determine the availability and bonding character of metals, microprobe analysis, and laser ablation-ICP-MS. Geochemical evolution of the water and geyserite precipitation was modeled using Geochemist's Workbench. Sb oxidation-rate analyses were inconclusive; however, the partitioning of Sb into geyserite and the periodicity of the laminations indicate there are changes in the controls of Sb biogeochemistry. gsa.confex.com /gsa/2006AM/finalprogram/abstract_113203.htm   (516 words)

A Beautiful Specimen of Yellowstone Geyserite A small tree limb coated with geyserite is in the case with the spectacular cone shown below. In 1881, when this geyserite cone was collected, steam and hot water erupted from its 17 vents to a height of 9 m (30 ft). As the water cooled and evaporated, it deposited geyserite silica, a variety of opal. www.yellowstonetreasures.com /mystery_cone1.htm   (354 words)

Water Content of Opal-A: Implications for the Origin of Laminae in Geyserite and Sinter -- Jones and Renaut 74 (1): ... Water Content of Opal-A: Implications for the Origin of Laminae in Geyserite and Sinter -- Jones and Renaut 74 (1): 117 -- Journal of Sedimentary Research Geyserite and sinter from the Whakarewarewa geothermal area geyserite and sinter, suggests that the "wet" opal forms as jsedres.geoscienceworld.org /cgi/content/abstract/74/1/117   (354 words)

Another proposal for the origin of the Pot-of-Gold rock. Spicular geyserite = is shown in the splash zone at the air-water interface. Spicular geyserite is shown in the splash zone at the air-water interface. Stratiform geyserite is formed beneath the water in the subaqueous environment. www.science-one.com /new-468174-4253.html   (263 words)

geyserite - Search Results - MSN Encarta A mysterious geyser cone from Yellowstone is kept at the Smithsonian. This article describes and defines geyserite (hydrous silicon dioxide) and travertine (calcium... Although many of the rocks you see in the world were made millions or even billions of years ago, in... uk.encarta.msn.com /geyserite.html   (112 words)

Definition of geyserite - Merriam-Webster Online Dictionary Learn more about "geyserite" and related topics at Britannica.com Find more about "geyserite" instantly with Live Search See a map of "geyserite" in the Visual Thesaurus www.m-w.com /cgi-bin/dictionary?va=geyserite   (53 words)

[No title]   (Site not responding. Last check: 2007-10-09) Early workers characterized high-temperature (>73°C) siliceous sinter, or geyserite, as "abiogenic" in origin, despite the fact that many varieties of high-temperature sinter show internal structures that are very much like those of biogenic stromatolites. Instead, thermophilic bacteria may play a major role in geyserite structuring and deposition at submicroscopic levels, including locally enhancing silica precipitation rates where growth rates are highest. However, in the high-temperature (>73°C) areas of hot springs, the growth and macrostructure of siliceous sinter (geyserite) appear to be less dependent on temperature than on local hydrodynamic conditions, which are dependent on the eruptive characteristics of individual hot springs. pangea.stanford.edu /~deena/abstracts.html   (518 words)

Apple Bay Project Geological mapping and drill core logging indicate that an intensely altered 20-35 metres thick section of rhyolite (identified as white chalky geyserite) overlies a unit of less altered rhyolitic breccia. The thicknesses of geyserite in each hole were averaged to produce a minimum thickness of 25.06m. The thicknesses of geyserite in each hole was averaged to produce a minimum thickness of 21.34m. www.homegoldresourcesltd.com /kaol/applebay.htm   (4607 words)

Yellowstone Pictures, Gallery 14   (Site not responding. Last check: 2007-10-09) In fact the road is so close to the geyser, when they built the road they cut into the broad geyserite mound that Pink Cone sits on and sliced into some parts of it's plumbing system, which hiss and spit a tiny bit while it is in eruption. I could be wrong as it is hard to see exactly where the various springs of the Pink Cone Group are if they are not erupting (all except one are geysers), and compare their locations to the map in my geyser book. It is illegal and very dangerous (read Death in Yellowstone), and very damaging to the mineral formations (geyserite is crushed to powder by hiking boots) to wander off the trails in the thermal areas in Yellowstone. www.cjsatomicdiner.org /gal14/gal14.html   (2108 words)

rybach paper   (Site not responding. Last check: 2007-10-09) One sinter consists of botryoidal heads of vitreous, opaline silica or "geyserite" that likely formed from actively spouting eruptions of boiling fluids along the fault zone. The sinter deposits range in age from 3438 +/-82 years (for opal-cemented shallow lacustrine or apron terrace pond deposits), and 2178 +/-57 years (on a small laminated sinter), to modern (for the large deposit of opaline geyserite). Paleoseismic studies identify three historic fault episodes in the central Dixie Valley area that may be related to the spring activity; the 1954 Dixie Valley rupture, a penultimate event (The Gap Event) bracketed between 3.7 and 2.2 ka, and an older event between 12 ka and 35.4ka (see Caskey, Bell, Slemmons, and Ramelli, 2000). pangea.stanford.edu /PetEng/geoth/workshop27/lutz2.html   (597 words)

Hot Springs - Yellowstone National Park   (Site not responding. Last check: 2007-10-09) As the hot water travels through this "natural plumbing system," the high temperatures dissolve some of the silica in the rhyolite, yielding a solution of silica within the water. At the surface, these silica-laden waters form a rock called geyserite, or sinter, creating the massive geyser cones; the scalloped edges of hot springs; and the expansive, light- colored, barren landscape characteristic of geyser basins. While in solution underground, some of this silica deposits as geyserite on the walls of the plumbing system forming a pressure-tight seal, locking in the hot water and creating a system that can withstand the great pressure needed to produce a geyser. www.nps.gov /yell/nature/geothermal/hotsprng.htm   (382 words)

Mounument Basin Monument basin was named for the weird cones of geyserite shown above. Just why these cones grew this way is unknown, however, the growth of the cones is the reason that geyser activity has ceased. Geyserite deposition in the Geyser's vent appears to be slowly choking the geyser similar to what apparently has happened to its' neighbors. www.wyojones.com /monument.htm   (406 words)

Glossary Page   (Site not responding. Last check: 2007-10-09) Cone-type geyser: a geyser whose eruption is jetted as a steady column of mixed water and steam from a small vent with little or no surface pool. The vent is often but not necessarily at the top of a built-up cone of geyserite. Geyserite: mineral material (opal or amorphous hydrated silica) that is deposited by geysers; also called siliceous sinter. students.washington.edu /tmc22/geysers/glossary.html   (349 words)

reportonbusiness.com: globeinvestor.com VANCOUVER, Oct. 15 /CNW/ - Electra Gold Ltd. is pleased to announce that the first barge load of chalky geyserite was shipped from Port Hardy to the cement plant of Ash Grove Cement Company at their Seattle operation on Thursday, October 10, 2003. The Company's environmental consultants, the BC Department of Mines and Electra Gold officials developed a strategy to study the effects of the proposed operation at the Apple Bay industrial mineral property in the context of producing chalky geyserite and geyserite as cement feed stock. Keystone and Electra Gold's other environmental consultants are confident that the test results will exceed acceptable guidelines for protection of the environment. www.globeinvestor.com /servlet/WireFeedRedirect?cf=GlobeInvestor/config&vg=BigAdVariableGenerator&date=20031015&archive=cnw&slug=1110151222   (392 words)

sinter --  Encyclopædia Britannica Siliceous sinter (geyserite; fiorite) is a deposit of opaline or amorphous silica that occurs as an incrustation around hot springs and geysers and sometimes forms conical mounds (geyser cones) or terraces. Iron ore sintering consists of heating a layer of fines until partial melting occurs and individual ore particles fuse together. Siliceous sinter, or geyserite, is an impure quartz deposited by hot springs and is a form of opal. www.britannica.com /eb/article-9067954?tocId=9067954   (484 words)

Microbial Composition of Near-Boiling Silica-Depositing Thermal Springs throughout Yellowstone National Park -- Blank ... with siliceous sinter (geyserite) was characterized in seven geyserite were collected by scooping the sinter or sediment geyserite at the air-water interface was collected using a chisel aem.asm.org /cgi/content/full/68/10/5123   (6359 words)

Search MINFILE Database   (Site not responding. Last check: 2007-10-09) Diamond drilling demonstrates the continuity and purity of the geyserite material (geyserite is a synonym of siliceous sinter). A typical analysis of geyserite for major elements is as follows: 1.02% Al2O3, 0.13% CaO, <0.01% Cr2O3, 0.34% Fe2O3, 0.26% K2O, 0.04% MgO, <0.01% MnO, 0.05% Na2O, 0.09% P2O5, 95.6% SiO2, 0.24% TiO2 and 2.0% LOI. Silica, one of the minor constituents of Portland cement manufactured by the Tilbury plant in Delta, is to be supplied from the Monteith Bay geyserite property. www.em.gov.bc.ca /cf/minfile/search/search.cfm?minfilno=092L++343   (431 words)

[No title]   (Site not responding. Last check: 2007-10-09) This delivery of high silica geyserite will be for a unit price substantially more than the normal chalky geyserite. Electra has delivered its primary product, chalky geyserite to Lehigh in the past, but this is the first order received by Electra for this second product. Electra plans to evaluate and if appropriate to develop its two properties containing kaolinite, one of which host the geyserite and chalky geyserite deposits. www.cdnx.com /data/lcdb/DOCP/SEP2004/T8HB01!.DOC   (381 words)

Electra Gold Ltd. - Progress report - Apple Bay Chalky Geyserite Project : ArriveNet Press Releases : Business   (Site not responding. Last check: 2007-10-09) Since receiving our permit in April to extract up to 110,000 tonnes of chalky geyserite from the PEM 100 Quarry located near Apple Bay on the north end of Vancouver Island, the company has posted the required reclamation bond of $50,000. Electra anticipates an order for a large bulk sample of chalky geyserite for our third customer, which is a very large cement producer in north western North America. Electra Gold Ltd. is a mining company, specializing in industrial minerals and dedicated to preserving the environment. press.arrivenet.com /business/article.php/359394.html   (322 words)

The UnMuseum - A Gallery of Geysers I   (Site not responding. Last check: 2007-10-09) What is most unusual about it is that the spring did not seal itself closed as it built the cone. Fishing Cone - This hot spring grew its geyserite cone in a lake. Early explorers came back to civilization telling how it was possible to catch a fish, then cook it by dropping it into a lakeside boiling hot spring without removing the fish from the line. unmuseum.mus.pa.us /geygal.htm   (406 words)

Globeinvestor.com: Electra Gold Ltd. announces the Apple Bay Chalky Geyserite production exceeded 26,500 tons and ...   (Site not responding. Last check: 2007-10-09) Electra Gold Ltd. announces the Apple Bay Chalky Geyserite production exceeded 26,500 tons and generated over $500,000 in revenue during the fourth quarter VANCOUVER, Jan. 5 /CNW/ - A total of nearly 30,000 tonnes of chalky geyserite was shipped to Ash Grove Cement Company of Seattle Washington and Lehigh Northwest Cement Limited of Delta, BC during the year 2003. Four of the five barge loads shipped during the year were sent during the fourth quarter of 2003, and consisting of approximately 26,500 tonnes generating just over $500,000 worth of revenue. globeinvestor.com /servlet/ArticleNews/print/CNW/20040105/1201057641   (261 words)

Black Sand Basin History   (Site not responding. Last check: 2007-10-09) Near the Black Sand Geyser is a deep pit in the geyserite, which has been washed out, leaving a crust suspended over a boiling cauldron, from which steam is constantly arising, filling the cave with a cloud of mist, which at times obscures the surface of the water. It was evidently an active geyser at one time but later took on the characteristics of a hot spring probably as its vent became partially closed by geyserite and the steam found an exit elsewhere. The bottom of the basin is covered with round geyserite nodules and pierced with two vent holes. www.geyserstudy.org /blacksand_hist.htm   (19946 words)

2005 - Electra Gold Ltd..   (Site not responding. Last check: 2007-10-09) Electra Gold Ltd. has received an order to deliver 200 to 250 pounds of high silica material for test work to be completed at a facility located in North Carolina. Electra Gold Ltd. has received a purchase order from Lafarge Canada Inc. for 2,200 tonnes of chalky geyserite to be delivered for load out at Port Hardy. Electra has delivered over 150,000 tons of geyserite and chalky geyserite to customers since the beginning of operations in 2003. www.electragoldltd.com /news/2005/index.php?mod=cnt&act=cnt&id=70   (788 words)

Shoshone Geyser Basin   (Site not responding. Last check: 2007-10-09) Throwing rocks into springs, plugging vents, or crushing or breaking the delicate geyserite formations is unacceptable and illegal. Sometime, probably in the spring of 1996, Geyser Cone apparently had a larger eruption that washed away much of the loose sinter around its cone and threw out small beaded chunks of geyserite. Velvet erupts from two vents; the eastern is a larger pool, the western is a smaller vent, and its crater is decorated with geyserite "biscuits." The western vent erupts in large surges, which sometimes cause the "blue bubble" effect during eruptions. www.geyserstudy.org /shoshone_GB.htm   (3179 words)

geyserite - OneLook Dictionary Search Tip: Click on the first link on a line below to go directly to a page where "geyserite" is defined. geyserite : Encarta® World English Dictionary, North American Edition [home, info] Geyserite : Online Plain Text English Dictionary [home, info] www.onelook.com /?w=geyserite&ls=a   (152 words)

[No title]   (Site not responding. Last check: 2007-10-09) The Company expects to save over $1.00 per ton in over-all trucking costs in the current operation, which includes the trucking of chalky geyserite to the load out facility located at Port Hardy, BC from the PEM 100 Quarry at its Apple Bay Project. The trucking in the past has been accomplished through various contractors, but will now be performed in-house with truck drivers employed by our company. Electra has delivered, by barge, over 150,000 tons of geyserite and chalky geyserite to its two customers located in Seattle, Washington and Delta, BC since beginning operations in late 2003. www.cdnx.com /data/lcdb/DOCP/MAY2005/VNHY01!.DOC   (285 words)

Gallery :: Yellowstone National Park   (Site not responding. Last check: 2007-10-09) Terraces of geyserite at Mammoth lead on to the uplift of the Absarokas in the distance. Note the geyserite still marking my boot toe. The Absaroka Range, an area of much earlier volcanism than the Yellowstone Hot Spot, rises above the northeast corner of the Park. gallery.furthest.org /album22?page=4   (192 words)

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