ACTIVITY 6.2 Mount Rainier Sediment Analysis Name: Course/Section: Date: of the

Question

ACTIVITY 6.2 Mount Rainier Sediment Analysis Name: Course/Section: Date: of the A. These are images of rocks on or near Mount Rainier, WA, an andesitic wolcano. Image A was taken at an outcrop of che andesite near the top of the wolcano, and Image B was taken near the middle of the volcano's slope, Image C was taken in the Nisqually River that drains away from the base of the volcano. Image C was taken 30 km downstream, at a delta where the river enters Alder Lake. All images are 113 of actual size. Note how the sediment changes from A to ID 2 km B. Mount Rainier slope, 5600 feet above sea level A. Mount Rainier outorop, 6600 feet above sea level. 4648 152N, 121 43 578W in Google Earth™ 4547 235N. 12144 23.4W in Google Earth™ 2 kilometers from Location A 9 lkm 30 km D. Alder Lake delta, at Elbe, southwest of Mount Rainier, 1200 feet above sea level. 464552N, 122 1145W in Google Earth™ 30 klometers downstream from Location C C. Nisqually River, near Longmire, southwest of Mount Rainier, 2600 feet above sea level. 46 44 26.4N, 121 49 27win Google Earth™ 9 kilometers downhill from Location B 1. What is the grain size of the sediment at each location, expressed as one or more Wentworth size classes B. A. D. C. 172

Explanation / Answer

1) A Boulder's

B Cobbles

C pebbles

D sands

2) A angular, B - sub angular, C - sub rounded

3) detrital , because they are derived from adjacent andesitic volcanoes

4) A - breccia, B - breccia, C - conglomerate, D - sandstone

5) it may be oxidized form of iron, which is produced by the oxidation of derro magnesium minerals in that rock

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.