This topic contains a solution. Click here to go to the answer

Author Question: Pennsylvanian rocks have a characteristic cyclical deposition sequence of ____ and ____ sediments ... (Read 98 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565

Pennsylvanian rocks have a characteristic cyclical deposition sequence of ____ and ____ sediments
  called ____.
  a. shale, carbonate, varves
  b. marine, nonmarine, varves
  c. carbonate, shale, cyclothems
  d. marine, nonmarine, cyclothems
  e. none of the above



Question 2

A cratonic sequence is recognized by a:
  a. transgressive phase followed by regressive phase.
  b. regressive phase followed by a transgressive phase.
  c. regressive phase only.
  d. transgressive phase only.
  e. lack of any sequence.




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

okolip

  • Sr. Member
  • ****
  • Posts: 362
Answer to Question 1

D

Answer to Question 2

A




scienceeasy

  • Member
  • Posts: 565
Reply 2 on: Jul 15, 2018
Wow, this really help


duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

 

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

For a complete list of videos, visit our video library