Earth science looking outside time to sleep

... parent -to- daughter changes with the passage of each successive half-life (W.W Norton)  Geologic Time The geologic time scale subdiv ides the 4.6-billion-y ear history of the Earth into many ... geologic ev ents occur? Interpreting Earth history is a prime goal of geology Some know ledge of Earth history and geologic time is also required for engineers in order to understand r...

Ngày tải lên: 29/11/2016, 23:48

... What can cause a landslide? earthquake by Marcia K a volcano? What makes magma rise inside Miller epicenter Why earthquakes happen at faults? erosion Changes to Earth s Surface Erosion and deposition ... downhill 10 11 How can Earth s surface change rapidly? Volcanoes A volcano is a landform It can cause a rapid change to Earth s surface Hot rock, called magma, has partly melte...

Ngày tải lên: 28/01/2015, 15:30

... arranged in weakly-connected sheets Asbestos Cleaves into long flexible fibers Asbesto s Asbestos -group of silicate minerals that readily separate into fibers that are: thin, flexible, heat ... Question: What minerals would you expect to be most abundant on Earth? Percent of elements by WEIGHT Average composition of the Earth s crust The Common Rock-forming Minerals Earth s Crust...

Ngày tải lên: 29/11/2016, 22:45

... Structural Geology vs Tectonics     Tectonics - how Earth was built Broader than Structural geology Encompassing study of surface to core Including disciplines as diverse as paleontology and geophysics ... deformation processes Integral part of tectonics, particularly in respect to deformation history over time Components of classwork     40% exams (10% each midterm, 20 % fina...

Ngày tải lên: 29/11/2016, 23:13

... controversial science - the theory of evolution (paleontology) is central to geology Geology seeks to understand the origin of our planet and our place in the Universe - answers to these questions ... convective circulation of the earth' s interior The convection delivers heat to the surface, so it can eventually be lost into space • Most of the earth' s interior is heated to a...

Ngày tải lên: 29/11/2016, 23:14

... Temperature Mars or Earth? Mars or Earth? Columbia Hills, Mars Atacama Desert, Chile Columbia Hills, Mars Mars or Earth? Mars or Earth? Kilauea Volcanoe, Hawaii Olympus Mons, Mars Mars or Earth? Mars ... Mars or Earth? Dubai, UAE Endurance Crater, Mars What is the evidence for past water on Mars? Mars or Earth? Mars or Earth? Djado Plateau, Niger Valles Marineri...

Ngày tải lên: 29/11/2016, 23:20

... surroundings How did the Earth form? Why earthquakes occur? What lies beneath the land and below the ocean floor? Curiosity leads to exploration Why Study Earth History? The Earth has changed through ... scientific method is a method for finding answers to questions and solutions to problems Scientists work like detectives to gather data, to try to figure out what happened...

Ngày tải lên: 29/11/2016, 23:23

... present is the key to the past • Look at geological features of today’s Earth as being shaped by its past • States that the processes that are going on today to shape the Earth are the same processes ... for the Earth of 100 million years • Rate of sediment deposition – Resulted in an age for the Earth of 20 to 1,500 million Years • Rate of cooling of the Earth – Resulted in a...

Ngày tải lên: 29/11/2016, 23:23

... There are more than 3500 minerals identified New minerals are being found every year Periodic Table • elements account for 98%of Earth s crust • These elements combine to form minerals Oxygen Silicon ... as amber or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well Most gemstones are hard, but some soft minerals are used in...

Ngày tải lên: 29/11/2016, 23:24

... finally dunes, which have spacing from 0.5 to 10m or more and heights of tens of cm to a meter or more   In deeper currents, greater flow velocity is required to produce the large bedforms With increasing ... In Sand that is finer than 0.7 mm (coarse or finer) the first feature to form is ripples   Typically their spacing is 10 to 20 cm or less, and their height is less than a...

Ngày tải lên: 29/11/2016, 23:29

... points on various DB topics The list of topics and questions served as a guideline Discussion Topics -General • • • • • Imagine years from now What would you like to be able to with your projects ... • • • • • • • • “I don’t know how to use existing tools or databases.” “We are storing gigabytes of data on unstable media.” “I can’t get help to what needs to be done.” “Our lab equipm...

Ngày tải lên: 29/11/2016, 23:36

... sedimentary rocks are sandstone and limestone 11 of 26 © Boardworks Ltd 2005 Sedimentary rock – sedimentation 12 of 26 © Boardworks Ltd 2005 Sedimentary rocks sandstone sandstone limestone chalk 13 of ... weathering to sedimentation 23 of 26 © Boardworks Ltd 2005 Rock formation rocks are broken up by the action of weather volcano Igneous rocks basalt rises to surface where it cools rapidl...

Ngày tải lên: 29/11/2016, 23:43

... Standard: 8-3     Topography Topography is a term used to describe the Earth s surface Topography includes a variety of different features, collectively referred to as landforms Topography is measured ... processes include tectonic and depositional processes and their landforms Tectonic Landforms are created by massive earth movements due to tectonic and volcanic activity,...

Ngày tải lên: 29/11/2016, 23:44

... source (~36% of total consumption) Why Sedimentary Geology?  Employment Why Sedimentary Geology?  Earth and Life History   Sedimentary record contains information about past tectonic movements, ... Laboratories: Wednesday, 2:305:30pm, FDA 348-49 N.B Two field trips will be held during term, requiring extended time periods on these days (to be discussed in class) Grading     30 % l...

Ngày tải lên: 29/11/2016, 23:48

... description     Structures gives clues to geologic history of the past Principles of horizontality- what is that? How are structures depicted in a geologic map? In describing folds, need to know the ... the yield point or elastic limit Copyright © by Isior Factors affecting Rock deformation  Heat  leads to stretching of rocks at near earth s surface without breaking  at dept...

Ngày tải lên: 29/11/2016, 23:48