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3 edition of Plate motions and deformations from geologic and geodetic data found in the catalog.

Plate motions and deformations from geologic and geodetic data

Plate motions and deformations from geologic and geodetic data

semiannual report to the National Aeronautics and Space Administration for the period, 1 August 1994-31 December 1985

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Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English


Edition Notes

Statementprincipal investigator, Thomas H. Jordan
SeriesNASA contractor report -- NASA CR-177313
ContributionsUnited States. National Aeronautics and Space Administration
The Physical Object
FormatMicroform
Pagination1 v
ID Numbers
Open LibraryOL14982651M

Plate Tectonic Animations Thirteen simple plate tectonic animations (gifs) grouped into two related series depicting: 1) modern position of plate boundaries and plate motions through geologic time, and 2) creation of crust at mid-ocean ridge (i.e., divergent boundary) and imaging of magnetic stripes on the seafloor. Animations were originally. Reilly W.I. () Geodetic analysis of motion at a convergent plate boundary. In: Brunner F.K., Rizos C. (eds) Developments in Four-Dimensional Geodesy. Lecture Notes in Earth Sciences, vol Cited by: 3.

  Geodetic Plate Motion Geodesy, the science of measuring the Earth's shape and positions on it, allows the measurement of plate motion directly using GPS, the Global Positioning System. This network of satellites is more stable than the Earth's surface, so when a whole continent moves somewhere at a few centimeters per year, GPS can : Andrew Alden.   Summary. In the deformation analysis with a 2-D (or planar and horizontal), symmetric rank-two deformation tensor in geosciences (geodesy, geophysics and geology), the eigenspace components of these random deformation tensors (principal components, principal directions) are of focal interest. With the new development of space-geodetic techniques, such as GPS, VLBI, SLR and Cited by:

Absolute plate motions constrained by shear wave splitting orientations with Constraints on the evolution and vertical coherency of deformation in the Northern Aegean from a comparison of geodetic, geologic, and seismologic data, Earth and Planetary New geodetic data show evolution, revised spatial patterns, and reduced rates. Deformation in Progress. Only in a few cases does deformation of rocks occur at a rate that is observable on human time scales. Abrupt deformation along faults, usually associated with earthquakes occurs on a time scale of minutes or seconds.


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Plate motions and deformations from geologic and geodetic data Download PDF EPUB FB2

Plate Motions and Deformations from Geologic and Geodetic Data For the period 1 January 30 June critical new data on deformations precursory to large seismic events. Although earthquake Rigid-plate motions. In the ocean basins, most of the deformation.

Plate motions and deformations from geologic and geodetic data. (OCoLC) Online version: Jordan, Thomas H. (Thomas Hilman), Plate motions and deformations from geologic and geodetic data. (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.

Get this from a library. Plate motions and deformations from geologic and geodetic data: semiannual report to the National Aeronautics and Space Administration for the period 1 July December [Thomas H Jordan; United States. National Aeronautics and Space Administration.].

The first unambiguous geodetic determination of present-day Caribbean plate motion was reported by Dixon et al.

() from GPS measurements made at three sites during the early to mids (CRO1, ROJO, and SANA in Fig. 1).Relative to sites on the North America plate, all three stations moved 18–20 mm yr −1, ∼80% faster than predicted by the widely used NUVEL-1A model (DeMets et al., ).

We use geodetic data to investigate deformation following the magnitude ~ Antarctic intra-plate Earthquake, and show sustained three-dimensional deformation along East Antarctica's.

The use of geodetic data is really helpful for the establishment and the maintenance of a vertical reference system. In particular the use of GPS has allowed in the last decade to densify the.

We use geodetic data taken over four years with the Global Positioning System (GPS) to estimate (1) motion between six major plates and (2) motion relative to these plates of ten sites in plate bou Cited by: Geology (from the Ancient Greek γῆ, gē ("earth") and -λoγία, -logia, ("study of", "discourse")) is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time.

Geology can also include the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon. Geodesy (/ dʒ iː ˈ ɒ d ɪ s i /) is the Earth science of accurately measuring and understanding Earth's geometric shape, orientation in space and gravitational field.

The field also incorporates studies of how these properties change over time and equivalent measurements for other planets (known as planetary geodesy).

Geodynamical phenomena include crustal motion, tides and polar motion. Rates of motions of the major plates range from less than 1 cm/y to over 10 cm/y. The Pacific Plate is the fastest at over 10 cm/y in some areas, followed by the Australian and Nazca Plates.

The North American Plate is one of the slowest, averaging around 1 cm/y in the south up to almost 4 cm/y in the : Steven Earle. At active plate boundaries, such as along the San Andreas Fault on the West Coast of the United States, geodetic surveys have been used in concert with detailed records of seismicity to estimate stress buildup on faults and to predict seismic hazard.

For example, a. This allows consideration of small motions of the sites used to define the fixed South America plate and/or allow for proposed regional deformations to occur across a wider boundary, such as that related to drag tectonics around the corner geometry of the triple junction [Diraison et al., ].Cited by: Other articles where Plate is discussed: Earth: The outer shell: major separate rigid blocks, or plates.

There are two types of plates, oceanic and continental. An example of an oceanic plate is the Pacific Plate, which extends from the East Pacific Rise to the deep-sea trenches bordering the western part of the Pacific basin.

A continental plate is exemplified by. Structural Geology - the description and analysis of internal rock structures, such as folds and faults. The following links provide images and other information on structural geology. Plate Tectonics - a geological theory (now largely confirmed) that Author: Linda Zellmer.

Global models for plate motions (NUVEL-1, NUVEL-1A) combine ocean floor spreading rates, transform fault azimuths, and earthquake slip vectors to describe average relative plate motions by means of a rotation vector (Euler vector) for a time period of the past few million years (DeMets et al.,).

The investigation of present-day. Transform Plate Boundaries and Fracture Zones is a timely reference for a variety of researchers, including geophysicists, seismologists, structural geologists and tectonicists, as well as specialists in exploration geophysics and natural hazards. This book can also be used as an up-to-date reference at universities in both undergraduate and.

Start studying geology - plate tectonics- the grand unifying theory of geology. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start studying Earth Science - Plate Tectonics: Boundary Types & Motions.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. SPACE geodesy provides a new tool for measuring neotectonic deformation which, when combined with geological and geophysical observations and Cited by: You can find the new edition here: Physical Geology – 2nd Edition This book was born out of a meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in our courses because textbooks have become too expensive.

Traditionally tectonic Indian plate motion has been estimated using closed plate circuit models and summing motions across mid-ocean ridges. More recently Paul et al., (), using limited GPS velocity vectors, calculated a pole of rotation that suggested motion slower than that of the rates suggested by sea-floor spreading.Deformation occurring along plate boundaries as result of compressional or tensional forces at regional scale is reflected in nature by the presence of faulting and folding of rocks in outcrops at a smaller scale.

When rocks are deformed under conditions of elevated pressure and temperature, they undergo changes in their shape and / or volume. Rocks can react to the presence of these forces by.Video showing continental-oceanic subduction, causing Tanya Atwater and John Iwerks.

Subduction occurs when a dense oceanic plate meets a more buoyant plate, like a continental plate or warmer/younger oceanic plate, and descends into the worldwide average rate of oceanic plate subduction is 25 miles per million years, about a half-inch per year.