Chapter 19. Measuring Geological Time
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Mineral Mania
The Rock Factory A Pre-Visit Information Guide for Teachers Meets Next Generation Science Standards: 5-PS1-3; MS LS4-1,2; MS ESS1-4; MS-ESS2-1 How does our Earth create so many different types of rocks? Learn about the different processes that form and reform rocks as you identify many types of rocks, minerals and fossils. Students will learn to think like geologists as they move through interactive investigation stations packed with specimens from the Museum’s collections. OBJECTIVES The Rock Cycle: Students will examine the three types of rocks - igneous, metamorphic and sedimentary – and discover the processes that create them. Tracing the connections between shale and slate, limestone and marble, students will discover how the rock cycle changes the very ground beneath our feet! Characteristics of Rocks Students will learn how to observe and identify rocks through their unique characteristics, looking for telling clues such as layering, crystal size, fossils, magnetism, and more. Students will practice their observational skills as they describe the Museum’s unique rock and mineral specimens. Investigation Stations: Students will explore Museum geology specimens up close at investigation stations to answer such questions as: “Why do fossils form only in certain rocks?” “How do rocks form from volcanic eruptions?” “How can I recognize different types of rocks?”. ACTIVITIES Teachers are encouraged to conduct pre-visit and post-visit classroom discussions and activities with their classes to make the most of their experience. Encourage your students to start a classroom rock collection, and create an exhibit with the rocks organized by type – igneous, sedimentary and metamorphic. -
Geologic Boulder Map of Campus Has Been Created As an Educational Educational an As Created Been Has Campus of Map Boulder Geologic The
Adam Larsen, Kevin Ansdell and Tim Prokopiuk Tim and Ansdell Kevin Larsen, Adam What is Geology? Igneous Geo-walk ing of marine creatures when the limestone was deposited. It also contains by edited and Written Geology is the study of the Earth, from the highest mountains to the core of The root of “igneous” is from the Latin word ignis meaning fire. Outlined in red, numerous fossils including gastropods, brachiopods, receptaculita and rugose the planet, and has traditionally been divided into physical geology and his- this path takes you across campus looking at these ancient “fire” rocks, some coral. The best example of these are in the Geology Building where the stone torical geology. Physical geology concentrates on the materials that compose of which may have been formed at great depths in the Earth’s crust. Created was hand-picked for its fossil display. Campus of the Earth and the natural processes that take place within the earth to shape by the cooling of magma or lava, they can widely vary in both grain size and Granite is another common building stone used on campus. When compa- its surface. Historical geology focuses on Earth history from its fiery begin- mineral composition. This walk stops at examples showing this variety to help nies sell granite, they do not use the same classification system as geologists. nings to the present. Geology also explores the interactions between the you understand what the change in circumstances will do to the appearance Granite is sold in many different colours and mineral compositions that a Map Boulder Geologic lithosphere (the solid Earth), the atmosphere, the biosphere (plants, animals of the rock. -
Stratigraphic Framework of Cambrian and Ordovician Rocks in The
Stratigraphic Framework of Cambrian and Ordovician Rocks in the Central Appalachian Basin from Medina County, Ohio, through Southwestern and South-Central Pennsylvania to Hampshire County, West Virginia U.S. GEOLOGICAL SURVEY BULLETIN 1839-K Chapter K Stratigraphic Framework of Cambrian and Ordovician Rocks in the Central Appalachian Basin from Medina County, Ohio, through Southwestern and South-Central Pennsylvania to Hampshire County, West Virginia By ROBERT T. RYDER, ANITA G. HARRIS, and JOHN E. REPETSKI Stratigraphic framework of the Cambrian and Ordovician sequence in part of the central Appalachian basin and the structure of underlying block-faulted basement rocks U.S. GEOLOGICAL SURVEY BULLETIN 1839 EVOLUTION OF SEDIMENTARY BASINS-APPALACHIAN BASIN U.S. DEPARTMENT OF THE INTERIOR MANUEL LUJAN, Jr., Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government UNITED STATES GOVERNMENT PRINTING OFFICE: 1992 For sale by Book and Open-File Report Sales U.S. Geological Survey Federal Center, Box 25286 Denver, CO 80225 Library of Congress Cataloging in Publication Data Ryder, Robert T. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia / by Robert T. Ryder, Anita C. Harris, and John E. Repetski. p. cm. (Evolution of sedimentary basins Appalachian Basin ; ch. K) (U.S. Geological Survey bulletin ; 1839-K) Includes bibliographical references. Supt. of Docs, no.: I 19.3:1839-K 1. Geology, Stratigraphic Cambrian. -
Chapter 8: Geologic Time
Chapter 8: Geologic Time 1. The Art of Time 2. The History of Relative Time 3. Geologic Time 4. Numerical Time 5. Rates of Change Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Geologic Time How long has this landscape looked like this? How can you tell? Will your grandchildren see this if they hike here in 80 years? The Good Earth/Chapter 8: Geologic Time The Art of Time How would you create a piece of art to illustrate the passage of time? How do you think the Earth itself illustrates the passage of time? What time scale is illustrated in the example above? How well does this relate to geological time/geological forces? The Good Earth/Chapter 8: Geologic Time Go back to the Table of Contents Go to the next section: The History of (Relative) Time The Good Earth/Chapter 8: Geologic Time The History of (Relative) Time Paradigm shift: 17th century – science was a baby and geology as a discipline did not exist. Today, hypothesis testing method supports a geologic (scientific) age for the earth as opposed to a biblical age. Structures such as the oldest Egyptian pyramids (2650-2150 B.C.) and the Great Wall of China (688 B.C.) fall within a historical timeline that humans can relate to, while geological events may seem to have happened before time existed! The Good Earth/Chapter 8: Geologic Time The History of (Relative) Time • Relative Time = which A came first, second… − Grand Canyon – B excellent model − Which do you think happened first – the The Grand Canyon – rock layers record thousands of millions of years of geologic history. -
Chapter 1 – Introduction – Review of Rocks and Plate Tectonics Practice Exam and Study Guide
Chapter 1 – Introduction – Review of Rocks and Plate Tectonics Practice Exam and Study Guide To be able to understand the material covered during this course you need to have a basic background in the kinds of rocks making up our planet. This section of the study guide is aimed at helping you gain that background. 1. What are the three major groups of rocks found on planet Earth? Igneous Rocks 2. Which of the following processes is associated with igneous rocks? a. Solid‐state recrystallization b. Weathering and erosion c. Transportation and deposition d. Cooling a silicate liquid to a solid rock e. The accumulation of granitic debris in a moraine 3. If a silicate liquid flows out along the Earth’s surface or seabed, then it is called _______________. 4. If a silicate liquid exists beneath the Earth’s surface or seabed, then it is called _______________. 5. Which of the following terms refer to a body of magma or its solidified equivalent? a. Basalt b. Sandstone c. Gneiss d. Pluton e. Schist 6. If you can see the crystals making up an igneous rock with the naked eye, then the texture is described as a. Pyroclastic b. Phaneritic c. Aphanitic d. Porphyritic e. Aphyric from Perilous Earth: Understanding Processes Behind Natural Disasters, ver. 1.0, June, 2009 by G.H. Girty, Department of Geological Sciences, San Diego State University Page 1 7. In an aphanitic igneous rock can you make out the outlines of individual crystals with the naked eye? Yes or No 8. What type of igneous rock is the most volumetrically important on our planet? Intrusive Igneous Rocks 9. -
Eg, Change Or Extinction of Particular Living Organisms; Field Evidence Or
6.4. Construct explanations from geologic evidence (e.g., change or extinction of particular living organisms; field evidence or representations, including models of geologic cross-sections; sedimentary layering) to identify patterns of Earth’s major historical events (e.g., formation of mountain chains and ocean basins, significant volcanic eruptions, fossilization, folding, faulting, igneous intrusion, erosion). Use the diagram of a geologic cross section below to answer questions #1-2 1. Which rock layer most likely contains the most recently evolved organisms? a. 1 c. 3 b. 2 d. 4 2. Which rock layer represents the oldest rock? a. 1 c. 3 b. 2 d. 4 3. Use the diagram below to answer the question. The diagram shows the fossils in two different sections of rock found on opposite sides of a canyon. Which layer in rock section one is approximately the same age as layer X in rock section 2? a. Layer 1 b. Layer 2 c. Layer 3 d. Layer 4 4. Which statement is true about undisturbed layers of rocks on the side of a mountain? a. The rock layers closest to the ground level have more fossils in them. b. The layers of rock closest to the ground level are older than the layers on top. c. The layers of rocks that are the darkest in color are older than those that are lighter. d. The layers of rocks that are lighter in color are older than those that are darker. 5. The diagram below shows four different rock layers in a hillside. What is the best evidence that one of those rock layers was formed under an ocean. -
Vaughn Next Century Learning Center
2020 VAUGHN 2021 NEXT CENTURY LEARNING CENTER July/julio 2020 JULY-JULIO January/enero 2021 S M T W Th F S 1-31 Summer Vacation S M T W Th F S 1 2 3 4 30-31 Staff Development 1 2 5 6 7 8 9 10 11 3 SPED SPED SPED ESY ESY 9 12 13 14 15 16 17 18 AUGUST-AGOSTO 10 ESY ESY ESY ESY ESY 16 19 20 21 22 23 24 25 1 Compact Signing 17 18 ESY ESY ESY ESY 23 26 27 28 29 SD SD 3 Staff Development 24 ESY ESY ESY ESY SPED 30 0 4 FIRST DAY OF SCHOOL 31 August/agosto 2020 0 S M T W Th F S SEPTEMBER-SEPTIEMBRE February/febrero 2021 CS 4 Minimum Day (Comp Time) S M T W Th F S 2 SD 4 5 6 7 8 7 Labor Day Holiday SD 2 3 4 5 6 9 10 11 12 13 14 15 7 8 9 10 11 12 13 16 17 18 19 20 21 22 OCTOBER-OCTUBRE 14 15 16 17 18 19 20 23 24 25 26 27 28 29 5-9 Fall Break 21 22 23 24 25 26 27 30 31 28 20 NOVEMBER-NOVIEMBRE 18 September/septiembre 2020 3 Election Day - No Committee Meeting March/marzo 2021 S M T W Th F S 11 Veteran's Day Holiday S M T W Th F S 1 2 3 4 5 25 Minimum Day (Comp Time) 1 2 3 4 5 6 6 7 8 9 10 11 12 26-27 Thanksgiving Day Holiday 7 8 9 10 11 12 13 13 14 15 16 17 18 19 14 15 16 17 18 19 20 20 21 22 23 24 25 26 DECEMBER-DICIEMBRE 21 22 23 24 25 26 27 27 28 29 30 17 Minimum Day 28 29 30 31 21 18-31 Winter Vacation 20 October/octubre 2020 April/abril 2021 S M T W Th F S JANUARY-ENERO S M T W Th F S 1 2 3 1-6 Winter Vacation 1 2 3 4 5 6 7 8 9 10 4-6, 29 SpEd ESY (ID'd SPED Only) 4 5 6 7 8 9 10 11 12 13 14 15 16 17 7-28 ESY 11 12 13 14 15 16 17 18 19 20 21 22 23 24 18 Martin Luther King Jr Holiday 18 19 20 21 22 23 24 25 26 27 28 29 30 31 29 No School (Except -
Stratigraphical Framework for the Devonian (Old Red Sandstone) Rocks of Scotland South of a Line from Fort William to Aberdeen
Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen Research Report RR/01/04 NAVIGATION HOW TO NAVIGATE THIS DOCUMENT ❑ The general pagination is designed for hard copy use and does not correspond to PDF thumbnail pagination. ❑ The main elements of the table of contents are bookmarked enabling direct links to be followed to the principal section headings and sub-headings, figures, plates and tables irrespective of which part of the document the user is viewing. ❑ In addition, the report contains links: ✤ from the principal section and sub-section headings back to the contents page, ✤ from each reference to a figure, plate or table directly to the corresponding figure, plate or table, ✤ from each figure, plate or table caption to the first place that figure, plate or table is mentioned in the text and ✤ from each page number back to the contents page. Return to contents page NATURAL ENVIRONMENT RESEARCH COUNCIL BRITISH GEOLOGICAL SURVEY Research Report RR/01/04 Stratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen Michael A E Browne, Richard A Smith and Andrew M Aitken Contributors: Hugh F Barron, Steve Carroll and Mark T Dean Cover illustration Basal contact of the lowest lava flow of the Crawton Volcanic Formation overlying the Whitehouse Conglomerate Formation, Trollochy, Kincardineshire. BGS Photograph D2459. The National Grid and other Ordnance Survey data are used with the permission of the Controller of Her Majesty’s Stationery Office. Ordnance Survey licence number GD 272191/2002. -
Tennessee Hunting Seasons Summary 2021-22
2021-22 Tennessee Hunting Seasons Summary Please refer to the Tennessee Hunting and Trapping Guide for detailed hunting dates, bag limits, zones, units, and required licenses and/or permits. G = Gun • M = Muzzleloader • A = Archery • S = Shotgun DEER SPRING TURKEY Statewide bag limit: 2 antlered deer. No more than 1 per day. See the Tennes- S/A Young Sportsman (ages 6-16) Mar. 26-27, 2022* see Hunting and Trapping Guide for deer units and county listings. Daily bag: 1 bearded turkey per day. Counts toward spring A Aug. 27-29 Units A, B, C, D, L season bag of three (3). Private land, antlered deer only. S/A General Season April 2 - May 15, 2022* G/M/A Aug. 27-29 Unit CWD Bag limit: 3 bearded turkeys, no more than 1 per day. Antlered deer only. Private lands and select public lands (see hunting guide). *Some west and southern middle Tennessee counties have shortened seasons A Sep. 25-Oct. 29, Nov. 1-5 Statewide and reduced bag limits. See the Tennessee Hunting and Trapping Guide for Antlerless bag: Units A, B, C, D=4; Units L, CWD=3/day, no more information. season limit G/M/A Oct. 30 - Oct. 31, Jan. 8-9, 2022 Statewide GAME BIRDS Young Sportsman (ages 6-16). Antlerless bag: Units A, B, C, D=2; Units L, CWD=3/day Grouse Oct. 9- Feb. 28, 2022: Daily bag 3 M/A Nov. 6-19 Units A, B, C, D, L Quail Nov. 6 - Feb. 28, 2022: Daily bag 6 Antlerless bag: Units A, B=2; Units C, D=1; Unit L=3/day G/M/A Nov. -
How Does Solar Altitude, Diameter, and Day Length Change Daily and Throughout the Year?
How does solar altitude, diameter, and day length change daily and throughout the year? Let’s prove distance doesn’t matter in seasons by investigating SOLAR ALTITUDE, DAY LENGTH and SOLAR DISTANCE… Would the sun have the same appearance if you observed it from other planets? Why do we see the sun at different altitudes throughout the day? We use the altitude of the sun at a time called solar “noon” because of daily solar altitude changes from the horizon at sunrise and sunset to it’s maximum daily altitude at noon. If you think solar noon is at 12:00:00, you’re mistaken! Solar “noon” doesn’t usually happen at clock-noon at your longitude for lots of reasons! SOLAR INTENSITY and ALTITUDE - Maybe a FLASHLIGHT will help us see this relationship! Draw the beam shape for 3 solar altitudes in your notebooks! How would knowing solar altitude daily and seasonally help make solar panels (collectors)work best? Where would the sun have to be located to capture the maximum amount of sunlight energy? Draw the sun in the right position to maximize the light it receives on panel For the northern hemisphere, in which general direction would they be pointed? For the southern hemisphere, in which direction would they be pointed? SOLAR PANELS at different ANGLES ON GROUND How do shadows show us solar altitude? You used a FLASHLIGHT and MODELING CLAY to show you how SOLAR INTENSITY, ALTITUDE, and SHADOW LENGTH are related! Using at least three solar altitudes and locations, draw your conceptual model of this relationship in your notebooks… Label: Sun compass direction Shadow compass direction Solar altitude Shadow length (long/short) Sun intensity What did the lab show us about how SOLAR ALTITUDE, DIAMETER, & DAY LENGTH relate to each other? YOUR GRAPHS are PROBABLY the easiest way to SEE the RELATIONSHIPS. -
Physics: Sundial Science
Physics: Sundial Science MAIN IDEA Discover how the sun and its shadow is used to tell time by creating a sundial – an instrument that tracks the position of the sun to indicate time of day. SCIENCE BACKGROUND For centuries humans, have utilized the power of the sun as a light source, to grow food, and to tell time. Ancient civilizations used the sun to understand basic astronomy. By tracking the height of the sun in the sky, these civilizations developed calendars for the year and were able to identify harvesting and planting seasons (fall and spring equinoxes) all by tracking the movement of the sun. This also helped certain civilizations find the Equator, an imaginary circle around the Earth that divides it into two halves, the northern and southern hemisphere. By tracking the sun’s apparent position through the creation of sundials, these ancient civilizations were able to divide the day into morning and afternoon. A sundial is a device used to track time by marking a shadow on its surface as the sun moves. Light travels as a wave, similar to waves in the ocean. Shadows occur when this light wave is blocked by an object, creating a dark silhouette of that object on nearby surfaces as light continues to travel all around the object. Based on where the light source is, and the object that is blocking it, the shadow will look different. This is why for a sundial, the shadow will change throughout the day and even more noticeably throughout the year for the same time of day. -
A Silurian(?) Unconformity at Flanders Bay, Maine
Maine Geological Survey Studies in Maine Geology: Volume I 1988 A Silurian (?) Unconformity at Manders Bay, Maine Richard A. Gilman Gary G. Lash Department of Geosciences State University College at Fredonia (SUNY) Fredonia, New York 14063 ABSTRACT Reexamination of exposures of conglomerate and greenstone at the head of Flanders Bay has resulted in the recognition of an unconformity believed similar to that exposed on Spectacle Island on the east side of Frenchman Bay. It is proposed that the conglomerate is part of the Bar Harbor Formation of Siluro-Devonian age; the underlying greenstone is probably of Silurian age. The rocks above the unconformity consist of pebbly siltstone and polymict, matrix-supported conglomerate in which clasts are predominantly of felsic volcanic rocks and quartz. A depositional model is proposed in which gravels derived from a volcanic source terrane, and transported in a high energy tluvial system, were mixed with basin-margin muds to produce debris tlows. Chemical analyses of the underlying greenstone show it to be andesitic, but to have substantial differences in composition from Silurian and Lower Devonian basalts and basaltic andesites from the Machias-Eastport area. INTRODUCTION In his study of the stratigraphy of the Bar Harbor Formation 68° 15' 68° 00' in the Frenchman Bay area, Maine, Metzger (1979) briefly men 44° 30·~-~-~-~~-----------~ 2) tions exposures of pebble conglomerates that contain clasts of volcanic rocks and quartz at several isolated outcrops at the head of Flanders Bay, in the vicinity of Jones Cove (Fig. l). The ~N conglomerates are associated with a weakly foliated greenstone. He concluded that the conglomerates are intraformational with \ones Cove in a sequence of greenstones rather than belonging to the con Frenchman Bay glomerates of the Bar Harbor Formation that he describes from Spectacle, Turtle, Flat and Heron Islands on the east side of \) SCHOODIC Frenchman Bay (see also Gates, in press).