2. Draw lithologic correlation lines to connect equivalent rock units (shown using Roman numerals) in Figure 4.10.<\/p>\r\n
3. Using a different colour, draw lines connecting equivalent time-stratigraphic units. The numbers beside the rock units correspond to time intervals.\u00a0<\/strong><\/span><\/p>\r\n 4. Answer the questions that follow Figure 4.10.<\/p>\r\n\r\n\r\n[caption id=\"attachment_434\" align=\"alignnone\" width=\"1140\"] a. Identify the depositional environment of the following facies descriptions. Transcribe these environments onto Figure 4.10.<\/p>\r\n i. The bedrock is granite gneiss.<\/p>\r\n ii. Mature white quartz sandstone with crossbeds and Skolithos trace fossils.<\/p>\r\n iii. Tan coloured shale and siltstone, some hummocky beds and Cruziana traces.<\/p>\r\n iv.\u00a0 Light grey biomicrite with thinly laminated and hummocky beds.<\/p>\r\n v. \u00a0 Black, thinly laminated shale with Zoophycus traces.<\/p>\r\n vi.\u00a0 Dark grey shale and sandstone showing graded beds, and sole marks in cyclic bedding.<\/p>\r\n vii. Greenish siltstones at base becoming tan medium sans with metre-scale crossbeds, rare shells.<\/p>\r\n viii. Reddish brown, clast supported conglomerate interbedded with Crossbedded brown, immature coarse sandstone and mud-cracked siltstone.<\/p>\r\n b. What is happening to relative sea level between time intervals 1 and 4?<\/p>\r\n c. In which direction was the source for the sediment that forms unit (ii)?<\/p>\r\n d. Where would the deepest part of the sedimentary basin have been at time 1? Where would the shoreline have been?<\/p>\r\n e. Where is the deepest part of the basin (the lowest elevation) at time 4?<\/p>\r\n f. What was happening to relative sea level between time intervals 4 and 8?<\/p>\r\n g. Where was the shoreline at time 7? How did you come to this conclusion?<\/p>\r\n h. What does the appearance of (viii) directly on top of (vii) tell you about the sedimentary history of this region?<\/p>\r\n i. Could this whole sedimentary sequence be created by global sea level rise and fall only? What other processes could have occurred?<\/p>","rendered":" 1. Refer to the printer-friendly worksheets you downloaded (available at the beginning of Lab 4<\/a>). You can also click here<\/a> to download Figure 4.10 as a PNG file for editing with drawing software.<\/p>\n 2. Draw lithologic correlation lines to connect equivalent rock units (shown using Roman numerals) in Figure 4.10.<\/p>\n![\"\"](\"https:\/\/pressbooks.bccampus.ca\/earthhistorylab\/wp-content\/uploads\/sites\/1224\/2021\/02\/F4-10.png\")
<\/a> Figure 4.10 |<\/strong> Stratigraphic columns for Exercise 4.2.[\/caption]\r\nQuestions<\/h3>\r\n
What To Do<\/h1>\n