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	Resurgent dome - Wikipedia, the free encyclopedia
		Resurgent dome of Mount St Helens, May 25, 2005
		In geology, a resurgent dome is a volcanic dome that is swelling or rising due to movement in the magma chamber.
		In the monitoring of volcanic hazards, resurgent domes are often observed the most intensively.
	en.wikipedia.org /wiki/Resurgent_dome (70 words)

	Geofísica Internacional (Site not responding. Last check: 2007-10-25)
		As all resurgent products of the ZVC have a similar magmatic evolution, despite the fact that these magmas were fed by different shallow reservoirs, we infer that they may have been linked by a common deeper magma reservoir.
		Post-resurgent activity is characterized by intrusion of dacitic domes in the central area and by development of andesitic to basaltic lava cones around the caldera rim.
		The periodicity of the resurgent activity at the ZVC may pose potential volcanic hazards for the surrounding areas, including the city of Heróica de Zitácuaro (population of circa 70,000).
	www.unam.mx /serv_hem/revistas/fisica/1997/03/capra.html (5194 words)

	[No title] (Site not responding. Last check: 2007-10-25)
		As in the past, the decline was most pronounced around two "resurgent domes" - bulges within the caldera where geologists believe subterranean magma reservoirs hover closest to the surface.
		Scientists had previously assumed that the two domes moved as a single unit, not one after the other - a new pattern suggesting to some that pressurized fluid of some kind travels between the domes.
		The uplift has been most pronounced around the Mallard Lake and Sour Creek "resurgent domes" in the caldera, where geologists believe magma may be closest to the surface.
	www.billingsgazette.com /wyoming/981004_wyo010.html (1806 words)

	Encyclopedia: Yellowstone Lake (Site not responding. Last check: 2007-10-25)
		In the 1990s, geological research has determined that the two volcanic vents, now known as "resurgent domes", are rising again.
		During the period between 1923 and 1985, the Sour Creek Dome was rising.
		The resurgence of the Sour Creek dome, just north of Fishing Bridge is causing Yellowstone Lake to "tilt" southward.
	www.nationmaster.com /encyclopedia/Yellowstone-Lake (521 words)

	Migration of Fluids Beneath Yellowstone Caldera Inferred from Satellite Radar Interferometry
		Between August 1995 and September 1996 the caldera region near the northeast dome began to inflate, and accompanying surface uplift migrated to the southwest dome between September 1996 and June 1997.
		The main deformation mode is now uplift (~20 mm) associated with the SC dome [note the reversed color sequence toward the center of SC dome, relative to (A) and (B)].
		The progression of uplift from the SC dome to the ML dome may indicate that SC is closer, or at least better connected, to the magmatic source driving the deformation.
	quake.wr.usgs.gov /research/deformation/modeling/papers/yellowstone98.html (3667 words)

	MSN Encarta - Search View - Volcano
		This mound is called a lava dome or a volcanic dome.
		Such volcanic features, if geologically young, are often outlined by an irregular, steep-walled boundary (a caldera rim), which reflects the original ringlike zone, or fault, along which the ground collapse occurred.
		Some calderas have hills and mountains rising within them, called resurgent domes, that reflect volcanic activity after the initial collapse.
	encarta.msn.com /text_761570122__1/Volcano.html (3856 words)

	Valles Caldera 2 (Site not responding. Last check: 2007-10-25)
		However, there is evidence that a caldera-wide lake broke through during or just after formation of the resurgent dome, and that smaller lakes formed and broke through to San Diego canyon several times since then.
		This 'resurgent dome' rose up nearly a kilometer in ~20,000 years, and tilted the earlier ash beds and obsidian flows.
		As the dome grew, its top split and broke, forming a fault-bounded trough (faults are fl lines, ball on downthrown side).
	www.lpi.usra.edu /education/EPO/yellowstone2002/workshop/valles2 (506 words)

	petrography
		The upper member is characterized by dacitic volcanic breccia that represents dome collapse in the district.
		Rhyodacite to rhyolite flow domes bisect the district along a N30and#176;E trend that parallels the regional structural grain, defined by subvertical Potoco Formation redbeds.
		Highly silicified rhyodacite carapace breccias over shallow rhyodacite domes are underlain by an advanced argillic zone that is characterized by alunite, kaolinite, montmorillonite, dickite, and illite.
	sedward.home.netcom.com /petrography.html (656 words)

	Yellowstone National Park -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-25)
		Within this caldera lies most of (additional info and facts about Yellowstone Lake) Yellowstone Lake which is the largest high-elevation lake in North America and two resurgent domes which are areas that are uplifting at a slightly faster rate than the rest of the plateau.
		This differential in uplift has created two resurgent domes (Sour Creek dome and Mallard Lake dome) which are uplifting at 15 (A metric unit of length equal to one thousandth of a meter) millimetres a year while the rest of the caldera area of the plateau is uplifting at 12.5 mm/yr.
		Preserved within Yellowstone are many (additional info and facts about geothermal) geothermal features and some 10,000 (A natural spring of water at a temperature of 70 F or above) hot springs and (A spring that discharges hot water and steam) geysers, 62% of the planet's known total.
	www.absoluteastronomy.com /encyclopedia/y/ye/yellowstone_national_park.htm (2962 words)

	RECONNAISSANCE GEOLOGY OF MEXICO'S COPPER CANYON REGION: A PRELIMINARY REPORT (Site not responding. Last check: 2007-10-25)
		Three resurgent calderas have thus far been identified based on the occurrence of thick, intracaldera ignimbrites facies surrounded by typical moat sedimentary and igneous lithologies.
		The highway to Copper Canyon passes between the resurgent domes of these calderas and across their more easily eroded moat lithologies.
		At Divisadero, on the edge of Copper Canyon, the upper third of the volcanic section consists mostly of a pyroclastic sequence capped by a distinctive, crystal-rich tuff.
	gsa.confex.com /gsa/2001AM/finalprogram/abstract_23024.htm (440 words)

	Journal of Volcanology and Geothermal Research. (Site not responding. Last check: 2007-10-25)
		Acocella, F. Cifelli, R. Funiciello, Analogue models of collapse calderas and resurgent domes, Journal of Volcanology and Geothermal Research 104 (1-4) (2000) pp.
		Acocella, F. Cifelli, R. Funiciello, The control of overburden thickness on resurgent domes: insights from analogue models, Journal of Volcanology and Geothermal Research 111 (1-4) (2001) pp.
		Acocella, R. Funiciello, The interaction between regional and local tectonics during resurgent doming: the case of the island of Ischia, Italy, Journal of Volcanology and Geothermal Research 88 (1-2) (1999) pp.
	elsevier.com /cdweb/journals/03770273/viewer.htt?viewtype=authors&... (970 words)

	jemez mountains
		The author was under the mistaken impression that all those domes in the caldera were resurgent domes.
		Many of the other domes in the caldera are actually small "eruptions" of lava and, in some cases, include very nice obsidian.
		Many years ago, the Club was permitted to collect the fl and mahogany obsidian on the back side of the dome which, from the highway half way across the Valle Grande, appears to have several horizontal lines - actually, the remnants of old logging roads.
	www.agmc.info /jemez_mountains.htm (791 words)

	Untitled Document (Site not responding. Last check: 2007-10-25)
		These rhyolite melts then ponded beneath the Yellowstone region, in a shallow magma chamber that generating doming and the development of ring fractures on the Yellowstone surface.
		Two resurgent domes currently occupy the caldera floor -- the Mallard Lake dome to the west and the Sour Creek dome to the east.
		Resurgence has been associated with the intermittent extrusion of largely degassed rhyolitic lavas, most of which have erupted over the last 150,000 years.
	www.geology.sdsu.edu /how_volcanoes_work/Thumblinks/yellowstone_page.html (340 words)

	Geologica Carpathica (Site not responding. Last check: 2007-10-25)
		The Outer Arc consists of a number of overlapping stratovolcanic structures, generally composed of lava flows, domes, dykes/sills, volcanic necks and lahars of basaltic andesite, andesite and dacite composition.
		Lava flows of andesitic and basaltic-andesitic composition are present, together with domes of dacite and rhyolite.
		The Intermediate zone is composed of lava domes and small andesitic shield volcanoes.
	www.geologicacarpathica.sk /src/abstract.php?id=2000005100020083 (339 words)

	Scientists have only theories about why activity is increasing - billingsgazette.com
		The discovery came as a shock to geologists who, until then, only knew of two "resurgent domes" in the caldera that slowly puffed up and down with the underground movement of hot water and magma.
		The dome may be reconfiguring the underground system of heat, molten rock, water and channels to allow an extra boost of heat or hot water into the system, Wicks said.
		While scientists try to understand the connection with Norris, they'll also try to figure out whether the newly discovered dome, which geologists say had probably been there for a long time before it was found, is linked to the other two domes, Sour Creek and Mallard Lake.
	www.billingsgazette.com /index.php?id=1&display=rednews/2003/06/01/build/wyoming/35-activity.inc (1155 words)

	Yellowstone National Park : Yellowstone
		The major feature of the Yellowstone Plateau is the Yellowstone Caldera[?]; a very large, caldera which has been nearly filled-in with younger volcanic debris and measures about 40 miles long by about 30 miles wide.
		Yellowstone is at the northeast tip of a smooth U-shaped curve through the mountains, which is now the Snake River Plain[?].
		Two areas in particular at the focci of the elliptically-shaped caldera are raising faster than the rest of the plateau.
	www.fastload.org /ye/Yellowstone.html (2540 words)

	Yellowstone Caldera Volcano 2
		After eruption of the Lava Creek tuff, lava erupted inside the caldera (intra-caldera lavas) as thick flows and domes of obsidian or rhyolite.
		The Mallard Lake and Sour Creek (greens overlay, to northeast) structures are resurgent domes that formed as magma forced its way toward the surface.
		Both domes are scarred by faults (fl lines) where the rock broke as the domes were pushed up.
	www.lpi.usra.edu /education/EPO/yellowstone2002/workshop/y_caldera2/index.html (434 words)

	Tracking Changes in Yellowstone's Restless Volcanic System \| USGS Fact Sheet 100-03
		The uplift detected in the 1970s was centered near Le Hardy Rapids, between two resurgent domes-sections of the caldera floor that had earlier been pushed upward and faulted.
		Such resurgent domes form when magma rises to shallow levels beneath a caldera and slowly reinflates a previously depleted magma reservoir, pushing the overlying caldera floor upward to form a dome.
		The fact that the uplift documented in the 1970s was centered within the caldera near the resurgent domes seemed to indicate that the magma reservoir was again exerting pressure upward.
	pubs.usgs.gov /fs/fs100-03 (2858 words)

	Conference Center
		Lava domes are a steep-sided mass of viscous lava extruded from a volcanic vent, often circular in plain view and spiny, rounded, or flat on top.
		Lava domes commonly occur within the craters of or on the flanks of large composite volcanoes, such as Mt. St.
		A collapse of the dome on the western slopes could send pyroclastic flows over the towns of Mt. Shasta and Weed, which are built on top of pyroclastic deposits.
	www.spring.net /yapp-bin/public/read/Geo/70 (19613 words)

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	4.615/Syllabus
		Founded in 634 at the strategic head of the Nile Delta, the city evolved from an Islamic military outpost to the seat of the ambitious Fatimid caliphate which flourished between the 10th and 12th century.
		Its most spectacular age, however, was the Mamluk period (1250-1517), when it became the uncontested center of a resurgent Islam and acquired an architectural character that symbolized the image of the Islamic city for centuries to come.
		Christel Kessler, The Carved Masonry Domes of Medieval Cairo.
	web.mit.edu /4.615/www/syllabus.html (1580 words)

	CVO Website - Yellowstone Caldera, Wyoming
		Renewed doming in the western caldera culminated with extrusion of 1,000 cubic kilometers of intracaldera rhyolite flows between 150,000 and 75,000 years ago.
		The caldera is resurgent, with an early post-collapse dome uplifted within each of its two segments, followed by emplacement of early post-resurgence rhyolitic lavas from the enclosing ring-fracture zones.
		Following emplacement of a large rhyolitic lava flow in the western ring-fracture zone, renewed uplift of the resurgent dome occurred, reflecting insurgence of magma into the caldera system.
	vulcan.wr.usgs.gov /Volcanoes/Yellowstone/description_yellowstone.html (3108 words)

	KATV Channel 7 - Search Results (Site not responding. Last check: 2007-10-25)
		Resurgent Culture by Swami Krishnananda, The Divine Life Society...
		Resurgent Culture - An inaugural address given to university students on a
		Resurgent Africa looks for global partners (press release).
	www.katv.com /internetsearch.hrb?k=resurgent&start=40&max=10 (314 words)

	YELLOWSTONE NATIONAL PARK
		Two resurgent domes - near Old Faithful and just north of Yellowstone Lake - are still rising at nearly an inch per year.
		The one north of Yellowstone Lake is raising the lake's outlet and causing the water level to increase at an inch a year, flooding trees along the margins.
		White Dome Geyser Because of its massive 30 foot cone, this is apparently only of the oldest geysers in the park.
	www.adventureroad.com /Parks/Yellowstone/Yellowstone.htm (9767 words)

	[No title] (Site not responding. Last check: 2007-10-25)
		It is difficult to tell whether the earthquake caused the explosion or resulted from it, she said, but both offer evidence of the same volcanic forces that drive Yellowstone's famous geysers and hot springs.
		Seismographs placed the earthquake along the Elephant Back fault zone, a low rise running between Yellowstone's two "resurgent domes" - bulges within the Yellowstone caldera, or collapse crater, where subterranean magma reservoirs hover closest to the surface.
		Scientists from the U.S. Geological Survey recently reported that after falling slowly since 1985, the domes began rising again sometime in 1995 or 1996.
	www.billingsgazette.com /wyoming/981106_wyo001.html (514 words)

	Yellowstone Volcano Observatory Science-related FAQs (Site not responding. Last check: 2007-10-25)
		The magma body is closest to the surface near its ends where the top of the body is about 5-6 km deep and bottom of the body is about 16 km deep.
		The two volcanic resurgent domes at Yellowstone are near to the areas where the magma body is closest to the surface.
		The size, shape, location, and composition of the magma body is determined by seismic studies called seismic tomography.
	www.bonus.com /contour/Volcano_Hazards/http@@/volcanoes.usgs.gov/yvo/faqsscience.html (1008 words)

	Pubblicazioni Acocella
		Experimental study of collapse calderas and resurgent domes.
		The interaction between regional and local tectonics during resurgent doming: the case of Ischia Island (Southern Italy).
		Analogue modeling of resurgent calderas; the role of pre-existing tectonic and volcano-tectonic structures.
	host.uniroma3.it /dipartimenti/geologia/Pubblicazioni/pubblacocella.htm (7343 words)

	GOLDMARCA LIMITED (Site not responding. Last check: 2007-10-25)
		The dominant is the rectangular pattern reflecting the structural fault systems directions and fractures printed on the lithologic units.
		Locally it can be observed circular drainage patterns, associated to the geological ring structures, normally associated to the domes of rhyollites and volcanic centers (see figure 3).
		Circular structure and resurgent domes of rhyollites are evidences of a volcanic center, and possible collapse cauldron.
	www.goldmarca.com /aldedescrip.htm (3387 words)

	GEOLOGIC SETTING AND CHARACTERISTICS OF THE VOLCANIC-HOSTED EXPLORADOR QUARTZ-AG-AU VEIN SYSTEM, SELENE MINING ... (Site not responding. Last check: 2007-10-25)
		Andesitic to dacitic lava flows and epiclastic units are exposed preferentially within the ring zone, and are interpreted to represent a higher stratigraphic level and later stages of volcanic activity, indicating a downward movement of the caldera roof.
		Resurgent domes and flow-dome complexes of rhyodacitic to rhyolitic composition intruded the volcanic strata, and are exposed preferentially in the center of, and along the ring zone of, the caldera.
		The Explorador vein system is located parallel to a segment of the caldera margin.
	gsa.confex.com /gsa/2004AM/finalprogram/abstract_78368.htm (394 words)

	the Dave Davies Message Board
		What the original article fails to note is that the two resurgent domes in the park, Mallard Lake (about a mile north of Old Faithful) and Sour Creek (about six miles north of Fishing Bridge), after rising for several decades, began to go down several years ago.
		Some geologists suspect that the rising and falling of these two domes, as well as Elephant Back Mountain, a ridge between the two domes but does not connect them, is a pressure-relief system for the caldera that tends to allow the entire caldera floor to rise and fall evenly.
		The rising and falling of the domes, even in the relatively miniscule time that we've been able to observe them, is probably a pressure-relief system for the caldera.
	davedavies.com /new_discus/messages/6/3515.html?... (2738 words)

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