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Building a shield volcano

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Evolution of Hawaiian shieldvolcano revealed by antecryst-hosted melt inclusions

Ocean island basalts, exemplified by the Hawaiian Volcanics, are often considered to be the best targets for understanding the chemical and thermal structure of upwelling mantle plumes. The important feature with regards to the petro...

Stars: 104 Updated: February 21st,2018

Rangitoto Volcano Drilling Project: Life of a Small 'Monogenetic' Basaltic Shield in the Auckland Volcanic Field

Title: Rangitoto Volcano Drilling Project: Life of a Small 'Monogenetic' Basaltic Shield in the Auckland Volcanic Field Authors: Shane, P. A. R.; Linnell, T.; Lindsay, J. M.;...The upper 128 m of core comprises at least 27 lava flows ...

Stars: 156 Updated: February 21st,2018

Age of shield-building volcanism of Kauai and linear migration of volcanism in the Hawaiian island chain

Tholeiitic basalts of the Napali Formation comprise the bulk of the Kauai shieldvolcano. Potassium-argon ages measured on 16 samples from three separate areas in this formation lie in the range 5.14 ± 0.20 to 3.81 ± 0.06 m.y. The s...

Stars: 135 Updated: February 21st,2018

Upper mantle magma storage and transport under a Canarian shield‐volcano, Teno, Tenerife (Spain)

[2000] proposed that the chemistry of the shield massif volcanics in Tenerife is dominantly controlled by variation in depth and extent of melting followed by mineral fractionation and ...The largely similar magma plumbing system geom...

Stars: 127 Updated: February 21st,2018

Understanding the evolution of a basaltic shieldvolcano from seismic data: A new model for La Réunion, Indian Ocean

Title: Understanding the evolution of a basaltic shieldvolcano from seismic data: A new model for La Réunion, Indian Ocean Authors: Lebas, Elodie; Le Friant, Anne; Deplus,...The data presented highlight the existence of a large p...

Stars: 151 Updated: February 21st,2018

Internal structure and building of basaltic shieldvolcanoes: the example of the Piton de La Fournaise terminal cone (La Réunion)

The lithostratigraphic interpretation of these new exposures allows us to investigate the most recent building history of a basaltic shieldvolcano. We present the history of the Piton de La Fournaise terminal cone, from the building ...

Stars: 168 Updated: February 21st,2018

A Palaeocene intracanyon-style lava emplaced during the early shield-building stage of the Cuillin Volcano, Isle of Skye, NW Scotland

The twin summits of Preshal More and Preshal Beg, near Talisker, Isle of Skye, comprise the erosional remnants of a thick (at least 120 m) compound oliv...

Stars: 173 Updated: February 21st,2018

A low‐relief shieldvolcano origin for the South Kaua‘i Swell

Ashield origin would imply that Hawaiian and possibly other hotspot shieldvolcanoes can take on a wider variety of forms than is commonly thought, ranging from tall island‐buildingshields, to smaller edifices such as Ka‘ena Ridge...

Stars: 83 Updated: February 21st,2018

Stratigraphy of the Hawai‘i Scientific Drilling Project core (HSDP2): Anatomy of a Hawaiian shieldvolcano

($25 m/day), bit longevity, and core recovery were slower in the upper part of the submarine section due to the poorly consolidated character of the volcaniclastic sediments that ...This probably reflects the relatively short time int...

Stars: 139 Updated: February 21st,2018

Understanding the evolution of a basaltic shieldvolcano from seismic data: A new model for La Réunion, Indian Ocean

Understanding the evolution of a basaltic shieldvolcano from seismic data: A new model for La Réunion, Indian OceanABSTRACT High-resolution seismic reflection profiles gathered in 2006 ...As a consequence, the shallower horizon S is...

Stars: 151 Updated: February 21st,2018

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