Most popular questions
  1. Geology

    Isochron Diagrams Page 14 of 17 On the control part of the graph select the Rb/Sr option. Rember that the Half-life of Rb-87 is 48.8 Billion Years. Note that the scale on the horizontal axis is now 10 times greater than the vertical axis. Move the slider

    asked by Anonymous on September 15, 2010
  2. Geology

    Can someone please help with this problem? I am a little confused. Where is the location of that June 19 quake (to the nearest tenth of a degree in latitude and longitude)? P arrival time S arrival time hours:minutes:seconds tenths of seconds LTN 3:46:45.7

    asked by B.B on August 17, 2009
  3. Geology

    Describe the effect of shear strength on the following: a.) slope angle b.) orientation of planes of weakness c.) water in soil d.) vegetation Be thorough and THINK!

    asked by Angel on April 20, 2011
  4. geology

    Given a scale of 1:24,000: A. What is the ground distance in feet represented by three inches on the map? 72000in 6000ft B. What is the ground distance in meters represented by 5 cm on the map? 120meters C. How about the ground distance in kilometers

    asked by karen on March 6, 2011
  5. Geology

    Which of the following is consistent with the plate tectonic theory? Which of the following is consistent with the plate tectonic theory? A. Lithosphere convection drives mantle movement. B. As a plate sinks into the asthenosphere, it pulls the trailing

    asked by lee on October 16, 2016
  6. Geology

    What is the defining characteristic of the troposphere? (Straight forward answers please & thank you)

    asked by Rachel on October 2, 2011
  7. geology

    what is the Sample Locality Age (Million years)in Granite: Scottish Highlands, Gabbro: Sudbury Canada and Gneiss: Greenland?

    asked by john on October 27, 2012
  8. Geology

    List one mitigation strategy we could use to prevent wildfires in the Reno area. Please help ASAP!!! :(

    asked by Andrea on May 5, 2019
  9. Geology

    In the movie "Twister," what are some true facts portrayed in the movie that are about tornadoes? Please help ASAP!!! :(

    asked by Andrea on April 2, 2019
  10. Geology

    If the earthquake in Forks,WA is ranked 7.1 M, list the modified mecalli intensity ranking and explain the expected damage associated with this magnitude of an earthquake. Please help ASAP!!! :(

    asked by Andrea on March 17, 2019
  11. Geology

    What word is used for this definition? Concrete or filled wire baskets that support a slope and prevents landslides from occurring Please help ASAP I'm so confused!!! :(

    asked by Andrea on April 16, 2019
  12. Geology

    Briefly explain the process of wind, making sure to include the following terms and how each is related to wind development: solar radiation, temperature, air pressure/density, warm/cold air masses and high/low pressure. Please help as soon as you can

    asked by Andrea on April 12, 2019
  13. Geology

    Which of the following pieces of evidence supports the plate tectonic theory? A. Ocean-floor sediments are oldest at the ridge crest. B. The stripe patterns of high- and low-intensity magnetism are mirror images on both sides of an oceanic ridge. C.

    asked by Tony on October 16, 2016
  14. geology

    Create a 12- to 15 slide Microsoft® PowerPoint® presentation for your chosen geologic feature. Address the following: · Describe the various geologic events that have occurred in the region around your feature. · Describe the geological features and

    asked by sweetbev on April 27, 2012
  15. geology

    Natural causes? Erosion, from wind and water. I cannot seem to find any specific natural causes of sand deposition. I have read all of my chapters and google searched "sand deposition" and can't

    asked by bobpursley on June 14, 2007
  16. geology

    What are the mineral components of Dockweiler beach sand

    asked by Hector on September 27, 2018
  17. Geology

    For my final I am to write a paper discussing the following : Select some product produced in your city or state that is made from earth, mineral, or energy resources. One example would be the tar paper used as a building material. (Do not use this

    asked by Hannah on October 23, 2011
  18. Geology

    The question is this: What is the contour interval on the Menan Buttes quadrangle? Are they wanting the quadrangle, because if they do I think it is 7.5. Is this correct? Thanks.

    asked by B.B. on August 2, 2009
  19. geology

    suppose you have a sample of clamshell at a paleoindian site and you measure the 14c activity of aa 100-gram sample of carbon as 320 disintegretions per scond (or 3.2 disingtegrations per gram of carbon per second). a. what was the activity(in

    asked by jon on October 16, 2007
  20. Geology

    True or false: Emission standards are set and differ at the national, state, and local levels.   Please help immediately!!! :(

    asked by Andrea on May 12, 2019
  21. Geology

    Label the zones: berm, beach face, breaker zone, swash zone, surf zone Please help right now!!! :(

    asked by Andrea on May 3, 2019
  22. Geology

    Label the areas of sand build up and erosion. Please help immediately!!! :(

    asked by Andrea on May 3, 2019
  23. Geology

    Why isn't the land surface of Earth flat after millions of years of erosion by mass wasting as well as by other erosional agents?

    asked by Angel on April 20, 2011
  24. Geology

    PLEASE HELP By applying the various principles, draw a cross section of an area in which the following sequences of events occurred. The relative time relationship for all events should be clear to you from your single cross section that shows what the

    asked by angel on April 13, 2011
  25. geology

    1. Given the map, the seismograms, the sp graph and the nomogram below, find the epicenter and the intensity of the earthquake. 2. Given the map below find the distance between Sao Paulo (Brazil) and Cape South Africa 10,000,000 years from now. The actual

    asked by andre F on October 12, 2010
  26. Geology

    I need help with a radiometric dating equation. I am trying to determine the age of a sample that has a 40AR/40K ratio of 4.5. I understand the equation of D=Do+N(e^.693t-1). I understand I would set Do to zero. But what is D? I went to geology tutoring

    asked by Aracely on December 4, 2008
  27. Geology

    Give your best forecast of Dean’s U.S. landfall location, time period (date/time of day), and strength. Please help ASAP!!! :(

    asked by Andrea on May 3, 2019
  28. Geology

    How many calories would it take to transform 2 grams of ice at -12C to liquid water at 85C? How do u find the answere whats the math...and how do u use the chart?

    asked by Bernadet on November 11, 2010
  29. Geology

    (Fetter p235, 2) A soil sample is collected and taken to the lab. The volume of the sample is 75 cm3. At the natural water content, the sample weighs 168.00 g. It is then saturated with water and reweighed. The saturated weight is 171.25 g. The sample is

    asked by abdullah on October 5, 2017
  30. geology

    Apart from the composition of the rock itself, what climate do you imagine is more conducive to physical weathering? and Chemical weathering? I know physical weathering is from wind and water transporting the eroded rocks and particles. Chemical weathering

    asked by m on December 15, 2010
  31. geology

    if the air temperature @ sea level were 23 C what would the air temperature be at a height of 2 km under avg conditions?

    asked by lisa on December 4, 2010
  32. Geology

    A crystal of zircon separated from an igneous rock, was analyzed, and found to contain 7930 atoms of 207Pb, and 12070 atoms of 235U. Knowing the half life of 235U is 713 million years, how old is the zircon crystal? Please show your calculations so that I

    asked by Tamara on September 9, 2008
  33. Geology

    True or false: the stratospheric ozone layer is more or less the cause of global warming. Please help right now!!! :(

    asked by Andrea on May 12, 2019
  34. Geology

    True or false: Ozone is only formed in the stratospheric ozone layer. Please help ASAP!!! :(

    asked by Andrea on May 12, 2019
  35. Geology

    Describe what you had to do to get CO2 concentrations at or under 350 ppm. When were you able to reach this target? Now try to get below 350 ppm, starting at 2030, assuming we’ve been following the RCP8.5 scenario. What else do you need to do and when

    asked by Andrea on May 10, 2019
  36. Geology

    Is Cannon Beach in Oregon considered to be an active or passive tectonic setting?

    asked by Kelsie on November 10, 2015
  37. Geology

    How do I determine the age of Gabbro, Granite and Gneiss

    asked by Anonymous on October 17, 2012
  38. Geology

    How were divisions of time separated when scientists created the geologic time scale? by the thickness of rock strata by the color of rock strata by the fossils found in rock strata by the location of rock strata

    asked by Hi on February 21, 2013
  39. geology

    Approximately how many tons of lignite would be required to produce the amount of heat generated by one ton of anthracite coal?

    asked by Jen on January 18, 2010
  40. geology

    Where do fossil fuels and minerals come from? Describe how at least one fossil fuel and mineral is formed from its sources

    asked by scooby91320002 on June 26, 2009
  41. Geology

    Can someone please look this over and let me know if I described the Plate Tectonic Theory? Thanks. Write a 200-300-word summary about two historical figures and the process of mantle convection and plate movement. Two historical figures that contributed

    asked by A.W. on April 8, 2009
  42. geology

    We determine the structure of the Earth's core using: a)deep mine shafts b)satellite imaging c)radar and sonar d)seismic wave data e)magnetic resonance imaging

    asked by Layla on September 27, 2010
  43. Geology

    Does this sound right? Describe your assigned method and how it is used to evaluate geologic time. My assigned method was Absolute Dating / Numerical Age. Absolute Dating / Numerical Age is the process that assigns a numerical age ( this tells how old a

    asked by A.W. on March 31, 2009
  44. Geology

    The age of granite can be determined using radiometric dating. How would I explain the basis for the determination of a 238 U-Pb radiometric date of 1120 Ma for granite? Any help gratefully received. Tough one. I wonder if the following search results

    asked by Sam on April 5, 2007

    3. How do you think the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions or great earthquakes?

    asked by FAYE on November 5, 2015
  46. Geology

    Question: A tectonic plate that is being subducted along much of its boundary tends to move _________ a tectonic plate that is not being subducted. a) slower than b) faster than c) the same rate as d) over

    asked by lea on September 8, 2014
  47. geology

    what is the primary basis for differentiating the eras?

    asked by lisa on November 14, 2010
  48. Geology

    Can someone help me with these questions I have some material for them but not enough. • First-- Compare and contrast the geological features of a desert landscape and glacial landscape. Describe at least one process that creates the resulting landforms

    asked by Jen on January 24, 2010
  49. geology

    is this ok? harry hess studied the arced chains of islands with active volcanoes. in 1953 he discovered the great global rift. he is also know for his theriores on the sea floor spreading. alfred Wegener. alfred is remembered by his theory of the

    asked by scooby91320002 on March 13, 2009
  50. geology

    How old are the oldest meteorites yet studied and what is the minimum age of Earth since Earth is at least as old as the meteorites. We know the oldest meteorites contain equal amounts of uranium 238 and lead 206. Uranium 238 has a half life of 4.5 billion

    asked by m on November 21, 2010
  51. Geology

    Imagine that the gasoline that you are burning in your car this week was refined from petroleum that was produced from jurassic-age rocks in Arkansas. What is the primary source of energy that has been reclaimed to power your car? Explain. Hint: What is

    asked by JAYJAY on July 4, 2010
  52. Geology

    One of the curious things about the loss of life in regions surrounding the Bay of Bengal is that some 38,195 lives were lost in Sri Lanka, whereas only 2 lives were lost in Bangladesh. How could this be? It certainly couldn’t be the difference in

    asked by Anonymous on February 27, 2010
  53. Geology

    Given a scale of 1:24,000 A) What is the ground distance in meters represented by 5cm on the map? B) How about the ground distances in kilometers represented by 5cm on the map? Thanks for your help.

    asked by B.B. on August 2, 2009
  54. geology

    if gabbro cut across sandstone and schist and schist is the oldest meaning the bottom layer of sediment would the gabbro be the youngest layer im getting really mixed up ive searched on the web for a diagrame but they show intrusions of all kinds i need

    asked by jane on April 27, 2007
  55. Geology

    If the decay constant for radioactive decay of ^40 K is λ = 5.543*10^(-10) / year, use this equation to calculate ages of the samples in the following table: t(1/2) = 0.693/λ 1)What is the half life of 40K? table -----Np --- Nd---- Nd/Np

    asked by Maura on November 21, 2013
  56. Geology

    Granite age for Scottish highlands

    asked by Jess on April 16, 2012
  57. geology

    a ____ wave is an elastic rebound wave that travels outward in all directions from the point of an earthquake? I'm debating between, seismic, body and surface which one is correct? Thanks

    asked by Anonymous on August 7, 2011
  58. Geology

    If you were building a house on a cliff, what would you look for to ensure that your house would not be destroyed through mass wasting? Be thorough! Give me AT LEAST two things.

    asked by Angel on April 20, 2011
  59. Geology

    I know that Divergent margins, also known as rifting or spreading centers, happen when two plates move away from one another. Convergent margins happen when two plates move towards on another. The last transform faults happen when plates move past each

    asked by Lynn on October 3, 2010
  60. geology

    Granite comprising Stone Mountain crystallized from magma tens of kilometers within the Earth, but uplift and erosion has since laid this pluton bare. Assuming that erosion has only slightly modified the original shape of the more durable granite body,

    asked by Anonymous on August 23, 2010
  61. geology

    What are the major differences between topographic and geologic maps? • Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is

    asked by Anonymous on May 10, 2010
  62. Geology

    What does it mean to discove a popular geographic feature in my region. Could someone give me some examples of what I should be looking for? The question goes on to ask what major rock type does the feature consist of... I'm confused, please help

    asked by sam on December 18, 2009
  63. Geology

    What do you call Ignous rocks that form under the surface? Mary, igneous rocks are called fire rocks-underground,they are formed when the melted rock, called magma, deep within the earth becomes trapped in small pockets.As these pockets of magma cool

    asked by Mary on October 4, 2006
  64. geology

    Building Isochrons and Determining the Ages of Three Rocks Page 15 of 17 For each of the three rocks listed below follow these steps to determine the rock's age of formation. 1. Prepare an isochron by plotting the points that represent the amounts of

    asked by angela on April 18, 2014
  65. Geology

    Hi there I'm having trouble with this study guide. Could someone please help me? You’ve returned from a recent geologic expedition and discovered that the security at the airport has dumped out all of your carefully sorted rock samples into a heap. You

    asked by Matt on December 4, 2013
  66. Geology

    How is a mid-latitude cyclone formed: thunderstorms on the west side of an occluded front, frontal systems in association with the Jet Stream, a lot of hot air, or cyclonic circulation around a sub-tropical high? (Straight forward answers, if possible use

    asked by Rachel on October 2, 2011
  67. Geology

    How is a mid-latitude cyclone formed

    asked by Rachel on October 2, 2011
  68. geology

    Why is weather still unpredictable?

    asked by bruno on June 29, 2011
  69. Geology

    If you were building a house on a cliff, what would you look for to ensure that your house would not be destroyed through mass wasting?

    asked by Angel on April 20, 2011
  70. geology

    ... Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure?

    asked by kim on December 27, 2010
  71. Geology

    What information indicates the probable magnitude of future earthquakes along a specific fault segment?

    asked by Joe on October 10, 2010

    Describe at least four methods for determining the time sequences of stratigraphic units.("in your own words" also btw 100-200 words).

    asked by joey on April 15, 2008
  73. Geology

    What is the chemical make up of the sand at Dockweiler Beach, California and Napoopoo beach, Hawaii?

    asked by Debbie on January 18, 2008
  74. Geology

    What type of waves are Earthquakes?

    asked by Gary on December 6, 2007
  75. Geology

    Could anyone suggest the possible effect on the hydroshpere if there was a volcanic eruption? Many thanks it would be damged by the smoke from the volcanic eruption. Could you be more specific with your definition of 'damaged' please? What would happen to

    asked by Bean on May 2, 2007
  76. Geology

    1b - I have to draw a cross section showing the relationship with gabbro cutting across sandstone and schist with schist being the oldest. 1c - I have to write a brief geological history of the region starting with the oldest events. 200 words. Thanks

    asked by Desmond on April 29, 2007
  77. Geology

    Differences and similarities between a physical geologist and a historical geologist

    asked by Sarah on February 4, 2018
  78. geology

    I need help finding the BP ages of : (when the present year is 1950) Giant Sequoia tree rings from California. Date: 979 ± 52 years BCE Cedar of Lebanon fragments from funeral boat of Egyptian King Sesostris III. Date: 1843 ± 50 years BC and the BP dates

    asked by keanna on April 23, 2015
  79. Geology

    The Sun Is 150 Million Kilometers From The Earth, And The Earth's Equatorial Radius Is 6378 Km. How Much Would You Expect The Sun's Intensity To Drop, Based Only On This Additional Distance?

    asked by Pete on December 16, 2014
  80. Geology

    If glaciers worldwide were to melt, would temperature around the glacier rise, fall or remain the same as the glacier was melting?

    asked by Christine on October 30, 2012
  81. Geology

    Is sledding done better when the air temperate is 25 degrees Fahrenheit or 0 degrees Fahrenheit? Why?

    asked by Christine on October 30, 2012
  82. geology

    Below are descriptions of samples, with known ages expressed as either AD or BC (also called BCE). Convert these dates to BP dates (using 1950 as "the present.") 1. Wood from Egyptian coffin - from the Ptolemic period based on style. Date: 200 ± 150 years

    asked by k on September 4, 2012
  83. geology

    the 2002 afganistan earthquake measured 5.9 on the richter scdale and killed 1800 people. the 2001 western Washington 6.8 on the richter scale and killed only one person. can you imagine why the huge difference in the numbers of deaths? hint it has

    asked by larson on December 12, 2011
  84. Geology

    I need to write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of metamorphic rocks. Can someone help me get started with this and on the right track? Thanks

    asked by Scott on December 1, 2011
  85. Geology

    When a hurricane approches a costal area the damage from the storm surge is greater if it occurs: low tide, high tide, tide makes no difference? The dew point of a prcel of air refers to: its elevation above the surface, the temp. at which condesation will

    asked by Rachel on October 2, 2011
  86. Geology

    Based on Paul Garner's book: The New Creationism, which of the following are problems with the Solar Nebula Theory? (Note: You may choose more than one of the following) [1] dust particles shouldn't accrete, they should spread apart [2] the sun isn't

    asked by Bruno on September 20, 2011
  87. geology

    When astronauts brought back rock samples from the Moon, the minerals present were mostly the same as those found on Earth. Can you think of reasons why this might be so? Would you expect minerals on Mars or Venus to be the same, or at least very similar,

    asked by nikki on May 25, 2011
  88. Geology

    I am in need of help with my final project in Geology. I have to create a 12-15slide powerpoint presentation on Factors and Forces of Geological Features. I have the final rubric Final Rubric: |Factors and Forces of Geological Features Objective of

    asked by Maren on January 28, 2011
  89. Geology

    Why are the gas planets found further from the sun that the rocky ones?

    asked by Zukii on January 20, 2011
  90. geology

    Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is the best location for your house? Why?

    asked by Tammy on September 6, 2010
  91. Geology

    Briefly describe the two types of body waves an earthquake creates, please?

    asked by anonymous on June 27, 2010
  92. Geology

    • Discuss in 200 to 300 words, the importance of the science of geology to us as a civilization. Provide at least two examples. For example, the ability to predict earthquakes and other disasters, or understanding mining and the use of natural resources.

    asked by Anonymous on June 2, 2010
  93. Geology

    How can we calculate the volume of a cylinder without knowing the mole of He and applying ideal gas low with the variable of pressure.

    asked by Arijit on April 8, 2010
  94. Geology

    What is the fractional scale of a quad?

    asked by B.B. on August 2, 2009
  95. Geology

    I need some advice on the topographic map of Menan Buttes, Idaho the latitude is 43 degrees 45'N what is the longitude? Thanks.

    asked by B.B. on August 2, 2009
  96. Geology

    Question: "List 2 erosional features and 2 depositional features associated with glaciation." Is "Two erosional features associated with glaciation are truncated spurs and cirques. Two depositional features associated with glaciation are glacial till, and

    asked by Leigh on May 20, 2009
  97. Geology

    Question: "List 2 erosional features and 2 depositional features associated with glaciation." Is "Two erosional features associated with glaciation are truncated spurs and cirques. Two depositional features associated with glaciation are glacial till, and

    asked by Leigh on May 20, 2009
  98. Geology

    I know that the earth quakes and shakes during a earthquake, but I do not understand how it moves. Can somebody explain how it moves?

    asked by A.W. on April 12, 2009
  99. Geology

    Scientists debate about the use of fossils as a tool to determine records of various events, such as the vanishing of the dinosaurs or the origin of our ancestors. Based on what you know of fossils from your textbook and other sources, discuss the role of

    asked by Hi on December 11, 2008
  100. Geology

    What is the difference between white feldspar and white talc? Based on looks please, I need to know how to identify each of them by Monday. Thank you!

    asked by Kay427 on December 10, 2008


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