CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «TEPHRA»
Descoperă întrebuințarea
tephra în următoarea selecție bibliografică. Cărți în legătură cu
tephra și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Tephra layers of Blind Spring Valley and related upper ...
Unlike the tuff of Blind Spring Valley higher in this section, the pumice in the
basal tephra layer (TTC-26A, B), here informally named the tuff of Benton Hot
Springs, contains mostly plagioclase feldspar but no sanidine, and the glass
shards ...
Andrei M. Sarna-Wojcicki, 2005
2
Encyclopedia of Paleoclimatology and Ancient Environments
TEPHROCHRONOLOGY Introduction Tephrochronology is a dating method
based on the identification, correlation and dating of tephra layers (Thorarinsson,
1944; Thorarinsson, 1981). It is important because it can give unusually precise
and ...
3
The Eruption of Soufrière Hills Volcano, Montserrat, from ...
Tephra fallout in the eruption of Soufriere Hills Volcano, Montserrat C.
BONADONNA1, G. C. MAYBERRY2, E. S. CALDER1, R. S. J. SPARKS1, C.
CHOUX3, P. JACKSON4, A. M. LEJEUNE1, S. C. LOUGHLIN5, G. E. NORTON6,
W. I. ROSE2, ...
Timothy H. Druitt, B. Peter Kokelaar, 2002
4
Quaternary Dating Methods
The technique most widely applied to determine the geochemical composition of
a tephra is electron probe micro-analysis (EPMA). The glass surface of each
tephra shard is bombarded with an electron beam, the X-ray energy produced
being ...
Mike Walker, Michael James Cawthorne Walker, 2005
5
Encyclopedia of Soil Science
Many distinct tephra layers are evident, disturbed by cryoturbation. Basaltic and
andesidic tephras are dark, but thin light colored rhyolitic tephras are also seen
near the middle and near the bottom of the profile. The soil contains considerable
...
6
New Zealand Journal of Geology and Geophysics
We emphasise that "tephra" denotes essentially unconsolidated material, thus
welded (or hardened) pyroclastic materials, of either flow or airfall origin, should
not normally be described as "tephra". It is also our intention that unconsolidated
...
7
Tephra layers of Blind Spring Valley and related upper ...
sists of coarse, obsidian-bearing pumice air-fall and reworked tephra and other
pyroclastic deposits correlative with, and temporally equivalent to, the rhyolites of
Glass Mountain (Metz and Mahood, 1985; Metz and Mahood, 1991). Tephra ...
Andrei M. Sarna-Wojcicki, Geological Survey (U.S.), 2005
8
Ecological Responses to the 1980 Eruption of Mount St. Helens
Where tephra fell on snowpack, Le crust cracked as the snow melted. The
presence of cracks lowed us to map the snowpack in May 1980. Cracks filled
jring the first winter (Antos and Zobel 1982). Water ponded i the tephra crust for a
few days ...
Virginia H. Dale, J.F. Franklin, Frederick J. Swanson, 2006
Torrential rainfall on recently deposited tephra or other unconsolidated material
can also form lahars (Waldron, 1967). These types of lahars can also be
generated during eruptions by rainstorms related to convecting eruption columns
(Moore ...
10
Understanding Climate Change
eruption in 934 A.D. Eldgja tephra fall collected by Thorvaldur Thordarson, 1.5
km SSW of Kambavatn. Sample no. 160883, section V. 2. ELD-1, average
composition of matrix glass in basaltic tephra from Eldgja eruption in 934 A.D.
Eldgja ...
André Berger, Robert Earl Dickinson, John W. Kidson, 1989
ȘTIRI NOI CARE INCLUD TERMENUL «TEPHRA»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
tephra în contextul următoarelor știri.
Leotard, tephra -- no sweat for Hudson County contestant at …
The 14-year-old correctly spelled two words on the national stage -- leotard and tephra (the material produced after a volcanic eruption) -- but after his score ... «NJ.com, Mai 15»
Man builds amazing treehouse home with its own skatepark
(Definition of a cinder cone: a "steep conical hill of tephra (volcanic debris) that accumulates around and downwind from a volcanic vent.") Huntington himself got ... «Treehugger, Mai 15»
Chilean Volcano Spews a Spectacular Lava Fountain
Caption: The slopes of Villarrica after the March 3 eruption, with dark grey volcanic tephra, along with mudflows produced by lava fountaining and flows. «Wired, Mar 15»
Researchers prove for the first time that ash clouds can cross …
Lead researcher Dr Britta Jensen from Queen's School of Geography, Archaeology and Paleoecology (GAP) said: "The ash, or tephra, is from Mount ... «Phys.Org, Nov 14»
Holuhraun Compared to the Laki Eruption
The Laki eruption produced an estimated 14 km3 (3.4 cubic miles) of lava, and the total volume of tephra emitted was 0.91 km3 (0.2 cubic miles). Lava fountains ... «IcelandReview, Nov 14»
Journal Highlight: Towards a protocol for the trace element analysis …
... plasma mass spectrometry (LA-ICP-MS) is used widely to analyse single volcanic glass shards from Quaternary tephra deposits for stratigraphic correlation. «spectroscopyNOW.com, Oct 14»
Alaska Volcano Blanketed Europe with Ash 1200 Years Ago
No volcanic eruption in Europe ever matched the enigmatic tephra that Jensen and her colleagues connected to Mount Churchill, which was dubbed AD860B in ... «LiveScience.com, Oct 14»
The Great Volcanoes: Surtsey Island
Explosive phases characterized the Surtsey eruption in the beginning, and due to the rapid cooling effects of the sea, the hot magma transformed into tephra ... «IcelandReview, Sep 14»
Why Volcanic Ash Is So Terrible for Airplanes
Caption: An ash plume from Iceland's Eyjafjallajokull crater during it's 2010 eruption, spewing tephra and ashes that drift toward continental Europe. Etienne De ... «Wired, Aug 14»
Continuuity open sources Tephra to take care of multiple data updates
Continuuity, the self-proclaimed big data PaaS startup has open sourced Tephra, a transaction engine tailored for Apache HBase, the NoSQL database that runs ... «GigaOM, Iul 14»
