The St Peter Sandstone is very pure sand; it is almost 99% silica. Where, in Mis

Question

The St Peter Sandstone is very pure sand; it is almost 99% silica. Where, in Missouri, can St. Peter Sandstone be found? Is it always at the surface? How old is the St. Peter Sandstone? (See introductory information.) How old is the Cotter Dolostone beneath it? (See introductory information.) What type of unconformity exists between these units? (See introductory information and also page 209 of our lab book.) How many years are missing? Name the likely environment in which the St. Peter sediment could have been deposited. List two tests (not observations) to perform to tell whether a rock is St. Peter Sandstone or Joachim Dolostone. Be specific about how each rock type may be identified by a specific test. The St. Peter Sandstone is friable. What does that mean? What are the commercial uses of sand from this formation? Cite your references.

Explanation / Answer

The sites where St peter sandstone can be easily found are located in eastern and south eastern Missouri along the St. Peter outcrop band. The St. Peter sandstone is currently quarried and is being produced in Missouri mainly from four sites which are located in St. Louis, Jefferson and also Perry counties. St. Peter sandstone is not always found on the surface. The St. Peter sandstone is present in the subsurface in the northern half of the state and is also found the south eastern edge of the state. St. Peter Sandstone is considered to be from Ordovician in age, or you can say about 485.4 million years old. It has been produced in Missouri for the last 140 years The cotter dolostone beneath st. peter sandstone is from early Ordovician Period 443.8 million years ago.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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