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1. What is the daughter isotope of 238U
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2. which rock is a coarse textured, intrusive igneous rock dominated by quarts, K feldspar and mica?
- Basalt
- Felsite
- Granite
- Diorite
3. which rock is a fine grained, extrusive igneous rock dominated by hornblende and augite?
- Basalt
- Diorite
- Felsite
- Granite
4. Which of the following are all not basic igneous rocks
- granite, granodiorite, diorite, rhyolite, felsite
- basalt, andesite, dolerite, gabbro
- grainte, andesite, gabbro, feliste
5. Which of the following are all layer silicate minerals?
- quartz, feldspars, pryoxenes, amphiboles, olivine, garnet.
- hematite, quartz, silica, potassium feldspar, talc, chert
- Galena, quartz, gypsum, muscovite, halite, barytes, iron pyrites
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