EXAM TWO II Flashcards Preview

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Flashcards in EXAM TWO II Deck (13):
1

_____ is formed a smooth, ropy-looking basaltic lava with low viscosity and has a twisted or ropey texture:

Pahoehoe basalt

2

______ is lava that issue from numerous fissures and covering extensive areas to thickness of hundreds of kilometers:

Flood Basalt

3

________ is a viscous basalt that is blocky appearing with sharp edges:

Aa basalt

4

The Sierra Nevada Range is an example of a _______:

Batholith

5

_________ would be an example of a volcano or volcanic area composed of flood basalts:

Columbia Plateau

6

_________ is pyroclastic material composed of fine, glassy garments or shards of silica:

ash

7

A _______ describes any visible emission of particles and gas (aerosols and vapors) from a volcano:

volcanic cloud

8

A(n) ________ is incandescent
volcanic debris buoyed up by hot gases that moves downslope in an avalanche fashion:

Nuee ardente

9

A _____ is a mudflow on slope of volcano created when layers of ash and debris becomes saturated with water and move downslope

lahar

10

_______ are walnut-sized pyroclastic material:

Lapilli

11

_______ is a broad, slightly domed-shaped structure produced by mild eruption of large volumes of fluid, basaltic lava:

Shield Volcano

12

Most ______-type volcanoes are located along the rim of the Pacific Ocean

composite

13

Volcanic ______ are streamlined pyroclastic fragments ejected from volcano while molten:

bombs