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Station 16 (Sample 1-7 ) \J Question 1. The composition of this rock is best described as: 5 a) felsic b) intermediate ¢) mafic d) ult ’ \ Question 2: The texture of this rock is best described a ) g i a) aphanitic @)phanermc ¢) vesicular d) pyroclastic e) glassy Station 17 (Sample 1-10) Question 1. The texture of this rock is best described as: \\Q aphanitic b) phaneritic g;pyroclastic ) glassy e) porphyritic Question 2. This texture of this rock is most likely to have been produced by: a) the extrusion of mafic lava ~ b) the slow cooling of magma DX (c) the deposition of rock fragments produced by explosive volcanism d) the rapid cooling of felsic lava e) the deposition of lava fragments Station 18 (Sample I-1) ) Question 1. The texture of this rock is best described as: ' 7%)\\ esicular @ glassy ¢) phaneritic d) pyroclastic e) porphyritic Questlon 2. This texture is produced: \< a) when lava cools very slowly b) when magma cools extremely slowlyhen lava cools extremely quickly d) when lava explodes €) when magma cools slowly, then even more slow \ Station 19 (Sample 1-6) Question 1. The texture of this rock is best described as: \ A} phaneritic ~ b) aphanitic c) pyroclastic ~ d) porphyritic =€) glassy Question 2. The name of this rock is: \ a) gabbro —b_)ETanlte ¢) obsidian d) pumice e) basalt Station 20 (Sample S-11) Question 1. What type of sediment (in terms of grain size) does this rock represent? a) clay b) silt @and d) gravel Question 2. This rock would appropriately be called: ' a) shale b) siltstone é)}andstone d) conglomerate ¢) rock salt Station 21 (Sample S-9) Question 1. The texture of this rock i is: Ny a) chemical ~ b) biochemical fl) clastic d) phaneritic ) foliated Question 2. The name of this rock is: ; \ta) shale - b) sandstone c¢) siltstone @onglomerate e) fossiliferous limestone Station 22 (Sample §-15) ~ Question 1. This rock is composed of the mineral: . a)halite b) calcite @quartz d)\gypsum e) talc ~Question 2. The texture of this rock w ould be considered: ; p¢ \ @) clastic @ microcrystalline ¢) coarsely crystalline d) fissile e) both a) and b)