Brian McNeill, University Public Affairs Boxes upon boxes filled with the fossilized remains of a mastodon that died in Virginia more than 18, years ago are being hauled up the steps to Virginia Commonwealth University’s Virtual Curation Laboratory, where the massive Ice Age animal’s fossils—including the tip of a tusk, a very worn tooth, toe bones, a rib bone and a mandible—are slated to be 3-D scanned. The mastodon’s tooth was first discovered in by a bricklayer named Lawnell Hart, who then enlisted the help of College of William and Mary geology professor Jerre Johnson, Ph. Hart and Johnson visited the site again and found additional fossils, but the property owners would not grant them permission to conduct a proper excavation. In my cabinet, I kept that stupid fragment of the jaw and this tooth that was cavity ridden. In , the site’s new property owners granted him permission, and Johnson, along with a team of volunteers, excavated a staggering quantity of the mastodon’s remains, which suggest that the animal was hunted and butchered by pre-Clovis American Indians during the last Ice Age. The Virtual Curation Laboratory 3-D scanned this mastodon jaw fragment with an abscess, which was excavated near Yorktown, Virginia. We probably know its predator. These are really neat discoveries.
The West African Craton generally consists of a Precambrian granitized basement and its surrounding Neoproterozoic mobile belts, forming the larger central, southern and western part of the country. This region has been mostly affected by the Pan-African tectono-thermal event. In the north, beginning from Tangier in Morocco via northern Algeria to Tunis in Tunisia, a folded chain extends over the entire length of the Maghreb.
This belt is part of the Alpine chain, with its features more resembling the Betic and Apenine segments of the Alpine unit.
Geology Labs Virtual Dating Geology Labs Virtual Dating Answers – Sat, 27 Oct GMT Download Geology Labs Virtual Dating Answers book pdf and others format out there from this web site may not be reproduced in any form, in whole or in part (except for temporary citation in important articles or comments without prior, written authorization from Geology Labs .
Its name is said to reflect a legend that states the prophet Job “Ayub” in the Quran visited this place and brought forth a spring of water by the blow of his staff on the ground. The water of this well is said to be exceptionally pure, and is regarded for its supposed “healing qualities. Ismail Samani mausoleum The Ismail Samani mausoleum 9th—10th centuries , is one of the most highly esteemed work of Central Asian architecture.
It was built in the 9th century between and as the resting-place of Ismail Samani —the founder of the Samanid dynasty , which was the last native Persian dynasty to rule the region in the 9th to 10th centuries, after the Samanids established virtual independence from the Abbasid Caliphate in Baghdad. The site is unique for its architectural style which combines both Zoroastrian and Islamic motifs. The building’s facade is covered in intricately decorated brick work, which features circular patterns reminiscent of the sun—a common image in Zoroastrian art from the region at that time which is reminiscent of the Zoroastrian god, Ahura Mazda, who is typically represented by fire and light.
The building’s shape is cuboid, and reminiscent of the Ka’aba in Makkah, while the domed roof is a typical feature of mosque architecture. The syncretic style of the shrine is reflective of the 9th to 10th centuries—a time when the region still had large populations of Zoroastrians who had begun to convert to Islam around that time.
The shrine is also regarded as one of the oldest monuments in the Bukhara region. At the time of Genghis Khan’s invasion, the shrine was said to have already been buried in mud from flooding. Thus, when the Mongol hordes reached Bukhara, the shrine was spared from their destruction.
From studying coral reef genomes to reef connectivity, these labs are devoted to researching the intensely interesting and dynamic ecosystems within our waters. Geodynamics Research and Visualization Lab The Geodynamics Research and Visualization Lab models the solid-state deformation of the lithosphere and upper mantle, with a focus on plate boundaries. This is accomplished through field work, analytic modeling, large-scale numerical modeling, data assimilation, and scientific data visualization.
Research areas are slab-driven mantle flow dynamics, feedbacks between the slab and upper plate, and designing high-resolution 3D models of plate boundary systems. Besides pencil and paper for analytic problem formulation, the lab has a core Dell Linux Cluster, geosolver, shared with the Knepley Computational Science Group and b a custom-built 3D immersive virtual reality workspace in Cooke Hall.
This group studies ice sheet processes and the history of glaciation to understand arctic climate change during the Pleistocene and the Holocene.
TEPHROCRONOLOGY DATING – Tephra Lab, Microanalytical Laboratory, Department of Physical Sciences, Division of Natural Sciences, Concord University, Athens, West Virginia Multimedia Tephrochronology Dating (Text & Images). VERY EXTENSIVE.
SC1 The information listed below is subject to change. Please review the course syllabus within your online course at the start of class. Course Competencies The competencies you will demonstrate in this course are as follows: Analyze sediments and identify sedimentary rocks based on their notable characteristics. Reconstruct paleo-environment – including paleoclimate, paleogeography, plate setting, and agent of erosion – from the analysis of sedimentary rocks and structures. Interpret modern and ancient depositional settings through the analysis of sediments, sedimentary rocks, and sedimentary structures.
Recognize the vastness of geologic time and apply the techniques of relative and absolute dating. List the major divisions of the geologic time scale. Interpret and correlate geologic events and features by means of stratigraphic analysis, including the use of geologic maps and stratigraphic sections. Describe and discuss how fossils form and how they are used as indicators of relative age and ancient environments. Recognize the major fossil groups. Describe and discuss the theory of evolution and correlate major events in the history of life with the geologic events occurring at that time.
We can calculate the half-lives of all of these elements. All the intermediate isotopes between U and Pb are highly unstable, with short half-lives. That means they don’t stay around very long, so we can take it as given that these isotopes don’t appear on Earth today except as the result of uranium decay. We can find out the normal distribution of lead isotopes by looking at a lead ore that doesn’t contain any uranium, but that formed under the same conditions and from the same source as our uranium-bearing sample.
Then any excess of Pb must be the result of the decay of U
Students can get certificates in virtual labs covering Earthquakes and Geological Dating. Help Us Select the Best Resources for this Discipline Help us make this page better and send your favorite resources to [email protected]
Alley and his team as they take you on “virtual tours” of National Parks and other locations that illustrate some of the key ideas and concepts being covered in Unit To proceed to the next image, move the mouse over the picture until the “next” and “previous” buttons appear ON the image or simply use the arrow keys. Virtual Field Trip 1: The rapid erosion at Bryce right leaves bristlecone roots exposed above the ground.
Still more bristlecones, this time on Mt. The tree shown at right is kept alive by a narrow strip of bark yellow arrow , while most of the tree has had its bark sand-blasted away or otherwise removed pink dashes. Tree-ring dating must be done under the living strip of bark. In this example of cross-dating in tree-ring research, the pattern of thick and thin rings in a core from a living tree A is matched to the pattern in a dead tree B , then to wood in a native-American site, C, and then on to other, older wood samples D-J.
Construction was done mostly with stone and mud, but also with some wood log in upper right, arrow , often hauled in from long distances. Tree-ring studies allow reconstruction of ages and of past climates. Museum specimen upper right , and logs from Long House above and right; arrow on right shows plug removed for tree-ring research and replaced by modern wood , Mesa Verde. First, Popcorn formation on column, second, helectites on column, and third, flowstone. Shield formation in a cave. Twisty stalactites called helectites A shield left and hollow stalactites soda straws; right.
The depositional history of Glacial Lake Missoula and features formed during multiple drainage events of the lake. Glacial Lake Missoula has been of great interest in western Montana for years, but correlation of lake-stands and drainage events to the Channeled Scablands of Washington has been based mostly on inference, not on detailed ages. I have ongoing interest in working with students on geological mapping, sedimentology, and stratigraphy of glacial deposits in the Clark Fork River drainage basin to improve understanding and correlation of these deposits.
(Lab) differentiate the types of plate boundaries and their associated features on maps and profiles and explain the processes that occur at each type of boundary.
Sometimes we need to know how old the rock really is. If you try to register for a driver’s license, simply showing that you’re obviously older than a six year old isn’t going to be enough. With rocks, the primary method of determining the precise age – known as absolute dating – is to use radiometric dating. Radiometric dating uses known rates of decay for unstable radioactive isotopes to determine the age of a specimen. Certain things, from rocks to fossils, are made of a small percentage of radioactive isotopes.
Those radioactive isotopes begin to decay as soon as the object is formed in the ground as a rock solidifies, or as a living thing dies. The isotope used for dating an object depends on the rough time scale involved.
Volume 27, Issues 5—6 , 5 December , Pages Luminescence dating: Wintle Show more https: Laboratory procedures for dating sediments have been adapted from those for pottery and new procedures have been developed as the need arises. The majority of sediment dating applications are carried out on quartz and potassium-rich feldspars and the general characteristics of the TL and OSL signals from these minerals are reviewed. For sediments some new problems were encountered, with some grains perhaps not being completely bleached at deposition.
For OSL signals there is no simple procedure for the selection of a thermally stable signal, as there had been in the case of pottery.
Geology Images free and available for downloading Geology Labs “virtual” labs in Coast, earthquake, and river processes, and dating methods GeologyLink: Virtual Field Trips and more!
It was the first permanent IBM installation in the world to do scientific work Comrie’s Greenwich setup had not been permanent. In late , Eckert presented a paper on this work to the American Astronomical Society. A seemingly mundane but significant aspect of this work was the new ability to feed the result of one computation into the next and print the results of these calculations directly, thus eliminating the transcription errors that were common in astronomical and lunar tables [ 17 ].
To illustrate with a quote from Kay Antonelli, University of Pennsylvania, referring to her wartime work [ 34 ], “We did have desk calculators at that time, mechanical and driven with electric motors, that could do simple arithmetic. You’d do a multiplication and when the answer appeared, you had to write it down to reenter it into the machine to do the next calculation.
We were preparing a firing table for each gun, with maybe 1, simple trajectories. To hand-compute just one of these trajectories took 30 or 40 hours of sitting at a desk with paper and a calculator. Ben Wood and his Statistical Bureau work with IBM to develop mark-sense technology to improve the efficiency of processing standardized tests [ 9 ].
Bill McIntosh and Matt Heizler who have over 60 years combined experience in the field of argon geochronology and thermochronology. The lab also employs a part-time technician, Lisa Peters who supervises mineral separation, sample irradiation and analyses, and data reduction. Since its christening in the winter of , the NMGRL laboratory has performed over , individual analyses.
Necessary in this regard is the software developed in house by Dr. Jake Ross , which allows for full automation of extraction line and mass spectrometer functions. The software controls the three laser systems, the resistance furnace, and all crucial extraction line and mass spectrometer valves which are operated via pneumatic air drivers.
Geology Labs Virtual River Answers Geology Labs Virtual River Answers – 9th edition physical geology plummerâ‚¬a dictionary of geology and earth sciences oxford quick referenceâ‚¬a geology for engineers seventh editionâ‚¬all objective of physical geology.
Overview[ edit ] In the scientific method , an experiment is an empirical procedure that arbitrates competing models or hypotheses. However, an experiment may also aim to answer a “what-if” question, without a specific expectation about what the experiment reveals, or to confirm prior results. If an experiment is carefully conducted, the results usually either support or disprove the hypothesis.
According to some philosophies of science , an experiment can never “prove” a hypothesis, it can only add support. On the other hand, an experiment that provides a counterexample can disprove a theory or hypothesis. An experiment must also control the possible confounding factors —any factors that would mar the accuracy or repeatability of the experiment or the ability to interpret the results.
All examinations center around different topics in the earth sciences meteorology, geology, planetary science, geology, etc. Assessments, Curricula and Instruction Grade Level: You can do these with individual students or small groups, while the rest of the class is doing independent work. You can also do interviews if you have a team-teaching arrangement.
They’re researchers at the University of Buffalo’s Center or Geohazards Studies, and their work focuses on large-scale disasters like K, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Kilauea Summit Eruption, Lava Returns to Halema’uma’u , United States Geological Survey USGS The video briefly recounts the eruptive history of Halema’uma’u and describes the formation and continued growth of the current summit vent and lava lake.
Mastering Geology and Mastering Oceanography are the teaching and learning platforms that empower you to reach every student. When combined with educational content written by respected scholars across the curriculum, Mastering Geology and Mastering Oceanography help deliver the learning outcomes that students and instructors aspire to.
Below are photographs of 15 rocks from the campus geology lab. Look carefully at each specimen click on each image for a closer view and compare your observations with the diagnostic properties listed in the table above. Each specimen may have a combination of features which makes its classification more challenging! In that case, make an educated guess from all your observations.
Then complete the following statements for each rock. Your answers need not be long a few words will do. Think of this lab exercise as a first step toward the more detailed identifications which you will learn with your own “hand specimens” in following lab exercises.