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Determining the lithology, extent, origin, and age of hummocks can be challenging, especially if these are covered by successive deposits and lush vegetation. At Chalupas caldera, a late-Pleistocene silicic center that lies astride the Eastern Cordillera of northern Ecuador, we have tried to overcome these difficulties by combining geological observations and sampling, laboratory analysis geochemistry, scanning electron microscope analysis and radiometric dating and remote sensing techniques. Collectively, the suite of techniques that we used helped to highlight geological features that shed light on the provenance of the hummocks and demonstrate that this topography may have originated from gravitational breccia flows from Buenavista lava dome. Numerical simulations were also performed to represent breccia flow transit and emplacement over the present caldera landscape and to view the potential hazard footprints of a future Buenavista dome collapse.
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Mega Eruption Of Yellowstone's Southern Twin -- ScienceDaily

North America isn't the only continent that's experienced super-colossal volcanic eruptions in the recent geologic past. The massive explosion of the almost unknown Vilama Caldera in Argentina appears to have matched Yellowstone's last continent-blanketing blast. It may, in fact, be just one of several unappreciated supervolcanoes hidden in a veritable mega-volcano nursery called the Eduardo Avaroa Caldera Complex, located in the inhospitable Puna-Altiplano region near the tri-section of Argentina, Bolivia, and Chile. The volume of ash and pyroclastic material, called ignimbrites, produced by the 8.
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Desara ® One Single Incision Sling 522 Study

Study record managers: refer to the Data Element Definitions if submitting registration or results information. Layout table for study information Study Type : Interventional Clinical Trial Estimated Enrollment : participants Allocation: Non-Randomized Intervention Model: Parallel Assignment Intervention Model Description: Adult female subjects, who in the opinion of their physician require surgical treatment or who have already been diagnosed with stress urinary incontinence, will be eligible for study participation. Subjects who provide informed consent will undergo screening and baseline assessments. Subjects who successfully meet the study's inclusion and exclusion criteria will be eligible to undergo a Desara SIS or Desara Blue implant procedure, with subsequent follow-up assessments.
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A small group of volcanic islands in Alaska's Aleutian chain might be part of a single, undiscovered giant volcano, say scientists presenting the findings Monday, 7 December at AGU's Fall Meeting If the researchers' suspicions are correct, the newfound volcanic caldera would belong to the same category of volcanoes as the Yellowstone Caldera and other volcanoes that have had super-eruptions with severe global consequences. Stratovolcanoes are what most people envision when they think of a volcano: a steep conical mountain with a banner of clouds and ash waving at the summit.
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