Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Lucy Porritt"'
Publikováno v:
Quaternary Science Reviews. 273:107247
Passage zones are stratigraphic surfaces found in littoral settings separating deposits diagnostic of subaqueous environments from overlying sequences of subaerial deposits. In glaciovolcanic settings, passage zone surfaces are unequivocal records of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e824b61ba36e37448bb3f64445853c2f
https://doi.org/10.1016/j.quascirev.2021.107247
https://doi.org/10.1016/j.quascirev.2021.107247
Publikováno v:
Journal of Volcanology and Geothermal Research. 312:11-25
The 2360 BP eruption of Mount Meager, Canada featured an explosive subplinian onset resulting in dacitic fallout tephra and associated pumiceous pyroclastic flow deposits, followed by the effusion of dacite lava and the deposition of a thick sequence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6af9e0f0293ad3c47bd38fc7bdbee39
https://doi.org/10.1016/j.jvolgeores.2016.01.013
https://doi.org/10.1016/j.jvolgeores.2016.01.013
Publikováno v:
Solid earth, 2014, Vol.5(1), pp.313-326 [Peer Reviewed Journal]
Solid Earth, Vol 5, Iss 1, Pp 313-326 (2014)
Solid Earth, Vol 5, Iss 1, Pp 313-326 (2014)
Most kimberlite rocks contain large proportions of ellipsoidal-shaped xenocrystic olivine grains that are derived mainly from disaggregation of peridotite. Here, we describe the shapes, sizes and surfaces of olivine grains recovered from kimberlite l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1cfb282c48bd9008b2a9efcee301efe
https://www.solid-earth.net/5/313/2014/
https://www.solid-earth.net/5/313/2014/
Publikováno v:
American Mineralogist. 100:774-786
We present a suite of 36 high-temperature (900–1100 °C) experiments performed on 10 × 10 mm unjacketed cores of rhyolitic obsidian from Hrafntinnuhryggur, Krafla, Iceland, under atmospheric pressure. The obsidian is bubble- and crystal-free with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d77d12e5148a8181345579d17e85932
https://doi.org/10.2138/am-2015-5030
https://doi.org/10.2138/am-2015-5030
Publikováno v:
Quaternary Science Reviews. 87:70-81
We present a descriptive genetic classification scheme and accompanying nomenclature for glaciovolcanic edifices herein defined as tuyas: positive-relief volcanoes having a morphology resulting from ice confinement during eruption and comprising a se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca6bd0aec41b2b927abfe971e36cb12d
https://doi.org/10.1016/j.quascirev.2014.01.001
https://doi.org/10.1016/j.quascirev.2014.01.001
Publikováno v:
Earth and Planetary Science Letters. :276-286
Accessory lithic clasts recovered from pyroclastic deposits commonly result from the failure of conduit wall rocks, and represent an underutilized resource for constraining conduit processes during explosive volcanic eruptions. The morphological feat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7c977aeb411a41fab1a638a13101f2d
https://doi.org/10.1016/j.epsl.2013.07.008
https://doi.org/10.1016/j.epsl.2013.07.008
Publikováno v:
The Canadian Mineralogist. 50:625-641
Two massive, poorly sorted pyroclastic kimberlite deposits from the Fox and Koala pipes at the Ekati diamond mine, Northwest Territories, Canada present different styles of alteration. The first, at Fox, has an interstitial medium-alteration assembla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::207d02da7a9ac418df12b8c6a126096c
https://doi.org/10.3749/canmin.50.3.625
https://doi.org/10.3749/canmin.50.3.625
Autor:
Lucy Porritt, James K. Russell
Publikováno v:
Physics and Chemistry of the Earth, Parts A/B/C. :24-32
Kimberlite pipes represent the conduits and vents of eroded volcanoes and are commonly filled with both coherent and volcaniclastic kimberlite including pyroclastic deposits, resulting from explosive volcanic eruptions. The properties of pyroclastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37131b7fab07844b3aead1ce9f4d992b
https://doi.org/10.1016/j.pce.2011.03.002
https://doi.org/10.1016/j.pce.2011.03.002
Autor:
Christine Deplus, T. P. Le Bas, T. Christopher, Martin R. Palmer, A. Le Friant, Peter J. Talling, R. S. J. Sparks, Susan C. Loughlin, R. Luckett, Jessica Trofimovs, Claire Foster, Lucy Porritt
Publikováno v:
Bulletin of Volcanology. 74:391-405
The 20th May 2006 lava dome collapse of the Soufrière Hills Volcano, Montserrat, had a total non-dense rock equivalent (non-DRE) collapse volume of approximately 115 × 106 m3. The majority of this volume was deposited into the ocean. The collapse w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a58f5a16ca05f9603b2f5aa268d20ad6
https://doi.org/10.1007/s00445-011-0533-5
https://doi.org/10.1007/s00445-011-0533-5