Science Quiz / 'G' in Geology

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

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