MODULE E – Planetary Engineering: Mesozoic Tectonics Lesson 17 – Plate Tectonics 101 Introduction - Plate Tectonics = “Grand Unifying Theory” explaining relationships between processes within Earth From Theory of Continental Drift - Alfred Wegener in 1915 The Theory of Plate Tectonics 1) Earth’s surface consists of many lithospheric plates including crust (continental or oceanic) and immediately underlying mantle‚ cold and rigid 2) These plates are presently moving around on Earth’s surface
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Characterization of Sedimentary Basins-Trinidad’s Southern Basin Trinidad’s southern Basin is a topographically low area between the Central Range Uplift and the southern Range Uplift. It forms an eastern part of the eastern Venezuelan Basin‚ which is positioned east of Venezuela and the Orinoco Delta. The basin is structurally deformed as a result of compressional tectonics. The tectonics are attributed to a triple boundary created from the interplay of the southern American‚ Caribbean and Atlantic
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Ch. 1 Questions 3.) How do you think the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts‚ huge volcanic eruptions‚ or great earthquakes? The principle of uniformitarianism states‚ “The present is the key to the past (Murck‚ B. W.‚ Skinner‚ B. J.‚ Mackenzie‚ D.‚ Visualizing Geology 2008). This means that anything that happens or will happen today‚ most likely has happened in the past. Scottish geologist James Hutton’s observation is that the physical
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A grouping of 110 to 112 million-year-old dinosaur footprints pressed into mud from the Cretaceous Period have now been safely moved from their original setting on the grounds of NASA’s Goddard Space Flight Center in Greenbelt‚ Md. Until further scientific study is possible‚ the footprints‚ now wrapped in protective material‚ will be stored on the Goddard campus. The discovery of dinosaur footprints came to light in August 2012 when well-known Maryland-based dinosaur hunter Ray Stanford brought
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Bahariya Bahariya oasis is a natural oval shaped depression. It is located at the contact between cretaceous and Eocene deposits. One of the early geologic works was carried out by Ball and Beadnell (1903). They produce a topographical- geological map of the oasis and discuss the stratigraphy of the rock exposed. They distinguished three topographic features; the bounding escarpments; the conical hills within the depression and the oasis floor. They notice that the southern scarp is steeper than
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identified one petroleum system--the Tertiary Niger Delta (Akata-Agbada) petroleum system. The delta formed at the site of a rift triple junction related to the opening of the southern Atlantic starting in the Late Jurassic and continuing into the Cretaceous. The delta proper began developing in the Eocene‚ accumulating sediments that now are over 10 kilometers thick. The primary source rock is the upper Akata Formation‚ the marine-shale facies of the delta‚ with possibly contribution from interbedded
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References: The Cretaceous-Tertiary Extinction. (2003‚ January 1). Retrieved March 23‚ 2015‚ from http://mygeologypage.ucdavis.edu/cowen/~GEL107/KT.html Igneous Rocks. (2005‚ April 1). Retrieved March 24‚ 2015‚ from http://geology.com/rocks/igneous-rocks.shtml Texas Almanac
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appeared during the Triassic period‚ approximately 230 million years ago‚ and were the dominant terrestrial vertebrates for 135 million years‚ from the beginning of the Jurassic (about 200 million years ago) until the end of the Cretaceous (66 million years ago)‚ when the Cretaceous–Paleogene extinction event led to the extinction of most dinosaur groups at the close of the Mesozoic Era. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic Period and‚ consequently
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1866 "Calamospondylus" Lydekker‚ 1889 – preoccupied name‚ now known as Calamosaurus Callovosaurus LONGEST The longest dinosaurs were sauropods; they were gigantic‚ slow-moving‚ tiny-headed‚ cow-like plant-eaters from the late Jurassic and the Cretaceous period. They had very long necks which were useful for reaching wide (and tall) swatches of vegetation. The lengthy neck was counterbalanced by a massive tail. These sauropods are the largest land animals ever discovered: Supersaurus - 134 feet
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Online Biology Lab Report Evolution Name______ A. Natural Selection 1. Record the number of beetles present in each of the three generations from the lab website. Generation|Orange Beetles|Green Beetles| 1st Generation|3|13| Later Generation|6|10| Last Generation|16|0| 2. Nature selected for the _______orange__________ beetles. 3. Nature selected against the______green________ beetles. B. Speciation 1. Why were wasp species A and B no longer able to mate with each
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