Question
29. Given a map view showing a circular vent region from which a pyroclastic eruption occurred while a wind was blowing from the north. Find the correct contour map for ash thicknesses, where one line is for 10 cm. of ash and the other line is for a thickness of 30 cm, of ash. Physical Geology Lab Assessment EX 24. Which is the parent rack for SLATE? rent rock for SATE sment Exam: DO NOT WRITE ON THIS EXANM Give entnort uptootes 10 n a. Gneiss b. Phyllite c. Limestone d. Sandstone Vent 25. Which of these rocks represents the highest grade of metamorphism? a. specimen A b. C. specimen C 26. What is the dominant mineral in this specimen of schist? a. Quartz b· K-Feldspar (Orthoclase) c. Olivine d. d. Hornblende e. Muscovite Mica 27. Which of the minerals provided belongs to the "Carbonate Group?" a. specimen A b. specimen B c. specimen C 30. You drill a well and the drill penetrates a shale bed before entering into a quartz sandstone unit filled with water. Upon removing the drill water free flows to the surface of the ground. What characteristic does this aquifer have? 28. Identify the structure (map view). a. the aquifer is confined and und pressure so the water flows to th surface b. the aquifer is not confined an is a freak of nature that the wa flowing to the surface. c. the aquifer is uphill from th recharge area d. I don't care that the wate a. Plunging syncline b. Basin c. Dome d. Plunging Anticline e. Fault to the surface, I'm just thir
Explanation / Answer
ANSWER:
24) Parent Rock for slate is Shale
25) specimen A
26) Muscovita Mica
27) Specimen A
28) Dome
