Science Quiz / 'G' in Geology

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QUIZ: Can you name the answers to these Geology questions where all of the answers begin with 'G'?

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Also try: 'F' in Geology
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Both for its blocky habit and chemical formula (PbS), #2 above is sometimes called the 'TV mineral'
The study of the Earth, the materials of which it is made, their structure, and the processes acting upon them
Ecuadorian volcanic island group overlying a spreading ridge and hotspot; its finches famously studied by Darwin
Most of today's southern hemisphere landmasses were once part of this ancient supercontinent
The study of Earth's surface, including the origin, description, and classification of landforms
Rounded clasts exceeding 2 mm in size; commonly used as a road surface
A mass of moving land ice formed by the compaction and recrystallization of accumlated snow (#3 above)
Hollow, vaguely spheroid masses with precipitated minerals lining the inside (#1 above)
A coarse-grained metamorphic rock with compositional banding
An elongated, downthrown block bounded by two normal faults that dip steeply in opposite direction
A mafic intrusive igneous rock composed of calcium feldspar, pyroxenes, and olivine, but little or no quartz
A hot spring that intermittently erupts a spray of steam and hot water
Water that exists below the water table (and below Earth's surface)
The leaf in #4 above is from a tree considered a 'living fossil'; it is the only living species in its division
A felsic intrsuive igneous rock composed of light-colored minerals like quartz, orthoclase, and muscovite
A large, common, and colorful nesosilicate mineral group; the most famous form is a red gemstone
Plants of this group produce 'naked seeds'; the group includes conifers and cycads
Attractive mineral materials; often rare, valuable, cut fancily, and worn for personal adornment
This dense, soft, malleable elemental mineral is often used as jewelry, as currency, and in electronics

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