نتایج جستجو برای: erebus

تعداد نتایج: 122  

2014
Nels Anton Iverson

A tephrostratigraphy of the active Antarctic volcano, Mt. Erebus, was determined from englacial tephra on the ice-covered flanks of Erebus and an adjacent volcano. The tephra are, used to reconstruct the eruptive history and magmatic evolution of Erebus. Scanning electron microscope images and Image Particle Analysis suggest the tephra formed in phreatomagmatic and magmatic eruptions and in som...

Journal: :Robotics and Autonomous Systems 1993
David Wettergreen Charles E. Thorpe William Whittaker

Wettergreen, D., Thorpe, C. and Whittaker, R., Exploring Mount Erebus by walking robot, Robotics and Autonomous Systems, 11 (1993) 171-185. Dante is a tethered walking robot capable of climbing steep slopes. In 1992 it was created at Carnegie Mellon University and deployed in Antarctica to explore an active volcano, Mount Erebus. The Dante project's robot science objectives were to demonstrate ...

2006
A. G. Davies

Introduction: We have obtained multiple contemporaneous ground and space-based visible and hyperspectral infrared observations of a persistent active lava lake, one of the rarest volcanonological phenomenon. This unique dataset advances our understanding of remote sensing of lava lake activity on Earth and Io. The Mt. Erebus lava lake: Active lava lakes are the top of an open magma system and p...

2006
Dawn Catherine Sweeney

SO2 emission rates from Erebus volcano show periodicity, which directly relates to lava lake convection and magma and conduit processes. Mt. Erebus is a 3794 m stratovolcano with a persistently degassing convecting, phonolite lava lake. Lava lake SO2 emission rates were collected from 1992 to 2003 using the correlation spectrometer (COSPEC) and in 2003 and 2005 using a miniature ultra-violet di...

Journal: :Geological Society, London, Memoirs 2021

Abstract Erebus volcano, Antarctica, is the southernmost active volcano on globe. Despite its remoteness and harsh conditions, provides an unprecedented unique opportunity to study petrogenesis evolution, as well passive explosive degassing, of alkaline magmatic system with a persistently open magma-filled conduit. In this chapter, we review nearly five decades scientific research related inclu...

Journal: :Contributions to Mineralogy and Petrology 2021

Abstract Glasses quenched from relatively undegassed ocean island magmas erupted volcanoes at Iceland, Hawaii, the Canary Islands, and Erebus have elevated Fe 3+ /∑Fe ratios compared to glasses mid-ocean ridge basalts. This has been ascribed f O 2 of their mantle sources, plausibly due subducted, oxidized near-surface-derived components in sources. The basaltic Reunion Island Indian Sr–Nd-Hf-Pb...

Journal: :إضاءت نقدیه فی الأدبین العربی و الفارسی 0
آذر دانشگر أستاذة مساعدة بجامعة آزاد الإسلامیة فی کرج، إیران

in all places and eras, human has been concerned with thought of fate of the spirit and he has some imaginations about the world after death and destiny of dead souls based on his knowledge. ardaviraf's travel story to hell, purgatory and eden and visiting emshasepandan and ahooramazda is of this kind. this paper is to investigate and analyze this valuable literary masterpiece and to descr...

Journal: :Annals of Glaciology 1982

2016
Kayla Iacovino Clive Oppenheimer Bruno Scaillet Philip Kyle

We present the results of phase equilibrium experiments carried out on basanite and phonotephrite lavas from Ross Island, Antarctica. Experiments were designed to reproduce the P–T–X–fO2 conditions of deep and intermediate magma storage and to place constraints on the differentiation of each of the two predominant lava suites on the island, which are thought to be derived from a common parent m...

2015
Bradley M. Tebo Richard E. Davis Roberto P. Anitori Laurie B. Connell Peter Schiffman Hubert Staudigel

The Earth's crust hosts a subsurface, dark, and oligotrophic biosphere that is poorly understood in terms of the energy supporting its biomass production and impact on food webs at the Earth's surface. Dark oligotrophic volcanic ecosystems (DOVEs) are good environments for investigations of life in the absence of sunlight as they are poor in organics, rich in chemical reactants and well known f...

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