1-20 OF 563 RESULTS FOR

microtomography

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 November 2021
American Mineralogist (2021) 106 (11): 1860–1870.
...Aleksandr A. Zubov; Tatyana G. Shumilova; Andrey V. Zhuravlev; Sergey I. Isaenko Abstract X-ray computed microtomography (CT) of impact rock varieties from the Kara astrobleme is used to test the method’s ability to identify the morphology and distribution of the rock components. Three types...
FIGURES
First thumbnail for: X-ray computed <span class="search-highlight">micr...
Second thumbnail for: X-ray computed <span class="search-highlight">micr...
Third thumbnail for: X-ray computed <span class="search-highlight">micr...
Journal Article
Journal: AAPG Bulletin
Published: 15 January 2020
AAPG Bulletin (2020) 104 (1): 37–52.
... to understand how this affects hydrocarbon recovery. This work reports x-ray microtomography (XMT) and nuclear magnetic resonance (NMR) data on two characteristic rock types. One is micropore dominated, and the other exhibits mixed-pore sizes. Several new techniques are introduced to accommodate investigation...
FIGURES
First thumbnail for: Nuclear magnetic resonance and x-ray <span class="...
Second thumbnail for: Nuclear magnetic resonance and x-ray <span class="...
Third thumbnail for: Nuclear magnetic resonance and x-ray <span class="...
Journal Article
Published: 01 June 2018
American Mineralogist (2018) 103 (6): 911–926.
...Matteo Parisatto; Alice Turina; Giuseppe Cruciani; Lucia Mancini; Luca Peruzzo; Bernardo Cesare Abstract X-ray computed microtomography (X-μCT) is applied here to investigate in a non-invasive way the three-dimensional (3D) spatial distribution of primary melt and fluid inclusions in garnets from...
FIGURES
First thumbnail for: Three-dimensional distribution of primary melt inc...
Second thumbnail for: Three-dimensional distribution of primary melt inc...
Third thumbnail for: Three-dimensional distribution of primary melt inc...
Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP448.11
EISBN: 9781786202932
... – specifically X-ray microtomography – to reveal the morphology and petrological context of Precambrian microfossils, pseudofossils and biosedimentary structures, all of which are important in the origin and early evolution of life of Earth. The materials tested came from the Pilbara Craton of Western Australia...
Journal Article
Published: 01 May 2016
European Journal of Mineralogy (2016) 28 (2): 245–256.
... in Japan. The studied fluid inclusion, which is composed of H 2 O–NaCl liquid and a CH 4 bubble, was picked up by using a focused ion beam (FIB) system and investigated by synchrotron-radiation-based X-ray microtomography (XCT), which provides a submicrometer spatial resolution. By using the FIB-XCT...
FIGURES
First thumbnail for: Combined FIB microsampling and X-ray <span class="...
Second thumbnail for: Combined FIB microsampling and X-ray <span class="...
Third thumbnail for: Combined FIB microsampling and X-ray <span class="...
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP430.16
EISBN: 9781862399624
..., he seems not to have studied the fossil that would later be recognized as Micrornatus . Here we re-examine this specimen using computed microtomography, with two principal aims: first, a revised anatomical account with an emphasis on concealed features; and, second, ‘proof-of-concept...
Journal Article
Published: 01 May 2015
Vadose Zone Journal (2015) 14 (5): vzj2014.06.0063.
... of the water table, creating a highly active zone for biological transformations and mass transport. We conducted column experiments to observe and quantify the magnitude and structure of the trapped gas phase at the pore scale using computed microtomography. Different grain size distributions of glass beads...
FIGURES
First thumbnail for: Quantification of Gas-Phase Trapping within the Ca...
Second thumbnail for: Quantification of Gas-Phase Trapping within the Ca...
Third thumbnail for: Quantification of Gas-Phase Trapping within the Ca...
Journal Article
Published: 01 February 2015
American Mineralogist (2015) 100 (2-3): 459–465.
...Luca Valentini; Barbara Marchesini; Matteo Parisatto; Diego Perugini; Gilberto Artioli Abstract Tourmaline nodules occurring in the Capo Bianco (Elba Island, Italy) aplitic rocks are here investigated by X-ray microtomography 3D imaging. This non-invasive technique provides 3D images...
FIGURES
First thumbnail for: Non-invasive assessment of the formation of tourma...
Second thumbnail for: Non-invasive assessment of the formation of tourma...
Third thumbnail for: Non-invasive assessment of the formation of tourma...
Journal Article
Journal: Geology
Published: 01 January 2015
Geology (2015) 43 (1): 55–58.
... by combining 2-D data from different sections. This procedure always involves some degree of interpretation that in some cases can be ambiguous. Recent advances in high-resolution X-ray computed microtomography have made possible the direct imaging in 3-D of volumes of rock to centimeter scale. This rapidly...
FIGURES
First thumbnail for: High-resolution X-ray computed <span class="search...
Second thumbnail for: High-resolution X-ray computed <span class="search...
Third thumbnail for: High-resolution X-ray computed <span class="search...
Journal Article
Journal: GSA Bulletin
Published: 01 January 2015
GSA Bulletin (2015) 127 (1-2): 281–296.
... or collapse calderas in volcanic terrains. This paper reports the first use of computed X-ray microtomography (μCT) to image analog models of small-scale (∼< 2 km diameter), high-cohesion, overburden collapse induced by depletion of a near-cylindrical (“stock-like”) body. Time-lapse radiography enabled...
FIGURES
First thumbnail for: Sinkholes, pit craters, and small calderas: Analog...
Second thumbnail for: Sinkholes, pit craters, and small calderas: Analog...
Third thumbnail for: Sinkholes, pit craters, and small calderas: Analog...
Journal Article
Published: 01 January 2015
Reviews in Mineralogy and Geochemistry (2015) 80 (1): 247–285.
...) or secondary emission (X-ray fluorescence microtomography) properties. Technological evolution of instrumentation and detectors as well as the development of new reconstruction procedures continues to increase the capacities and utility of XMT. For example, the development of ultra-fast tomography allows...
FIGURES
First thumbnail for: Resolving Time-dependent Evolution of Pore-Scale S...
Second thumbnail for: Resolving Time-dependent Evolution of Pore-Scale S...
Third thumbnail for: Resolving Time-dependent Evolution of Pore-Scale S...
Series: Clay Minerals Society Workshop Lectures
Published: 01 January 2014
DOI: 10.1346/CMS-WLS-19-5
EISBN: 9781881208433
... Abstract Computed X-ray tomography is a technique that produces cross sections of an object from a series of projections at different angles. The technique has found widespread use in medical CAT scanners, which typically have resolutions of ~1 mm. Microtomography is the extension...
Journal Article
Published: 01 November 2013
Vadose Zone Journal (2013) 12 (4): vzj2013.01.0014.
... influences water dynamics in soil—deserves special interest. With X-ray computed microtomography (micro-CT), soil structure and roots may be visualized and quantified simultaneously. We analyzed undisturbed soil samples from three grassland sites. After scanning the soil cores with an X-ray micro-CT scanner...
FIGURES
First thumbnail for: X-ray Computed <span class="search-highlight">Micr...
Second thumbnail for: X-ray Computed <span class="search-highlight">Micr...
Third thumbnail for: X-ray Computed <span class="search-highlight">Micr...
Journal Article
Journal: Geosphere
Published: 01 December 2010
Geosphere (2010) 6 (6): 793–804.
...D. Zandomeneghi; M. Voltolini; L. Mancini; F. Brun; D. Dreossi; M. Polacci Abstract X-ray computed microtomography is an excellent tool for the three-dimensional analysis of rock microstructure. Digital images are acquired, visualized, and processed to identify and measure several discrete features...
FIGURES
First thumbnail for: Quantitative analysis of X-ray <span class="search...
Second thumbnail for: Quantitative analysis of X-ray <span class="search...
Third thumbnail for: Quantitative analysis of X-ray <span class="search...
Journal Article
Journal: Geosphere
Published: 01 October 2010
Geosphere (2010) 6 (5): 470–481.
...Wim Degruyter; A. Burgisser; O. Bachmann; O. Malaspinas Abstract To illustrate the advances made in permeability calculations combining X-ray microtomography and lattice Boltzmann method simulations, a sample suite of different types of pumices was investigated. Large three-dimensional images...
FIGURES
First thumbnail for: Synchrotron X-ray <span class="search-highlight">m...
Second thumbnail for: Synchrotron X-ray <span class="search-highlight">m...
Third thumbnail for: Synchrotron X-ray <span class="search-highlight">m...
Journal Article
Published: 01 January 2009
Journal of Paleontology (2009) 83 (1): 153–159.
...Michael Heethoff; Lukas Helfen; Roy A. Norton While relatively new, X-ray microtomography (micro-CT) is increasingly used to image amber inclusions and especially the internal organization of extant microarthropods with a sub-micron resolution ( Betz et al., 2007 ; Dierick et al., 2007 ; Penny...
FIGURES
First thumbnail for: Description of Neoliodes dominicus n. sp. (Acari, ...
Second thumbnail for: Description of Neoliodes dominicus n. sp. (Acari, ...
Third thumbnail for: Description of Neoliodes dominicus n. sp. (Acari, ...
Published: 01 January 2007
DOI: 10.1130/2007.2421(13)
... We present a new technique for X-ray microtomography under high pressure. By modifying an opposed-anvil high-pressure cell known as the Drickamer cell, monochromatic X-ray radiographs can be collected through the entire cell assembly and a thin-walled containment ring. We designed a rotation...
Journal Article
Published: 01 May 2006
Vadose Zone Journal (2006) 5 (2): 641–648.
...) in both three-phase (water–air–organic liquid) and two-phase (water–organic liquid) systems were obtained using synchrotron X-ray microtomography. These data were used to quantitatively characterize the morphology of the organic liquid residing within columns packed with one of three natural, sandy porous...
FIGURES
First thumbnail for: Characterizing Pore-Scale Configuration of Organic...
Second thumbnail for: Characterizing Pore-Scale Configuration of Organic...
Third thumbnail for: Characterizing Pore-Scale Configuration of Organic...
Journal Article
Published: 01 October 2005
Mineralogical Magazine (2005) 69 (5): 643–652.
... that this effect is due to retention of acid in the pores of the HAP during the time when water flows, allowing further demineralization to take place during this time. The third study used X-ray microtomography, a form of 3D microscopy, to study the loss of mineral in compacted carbonate apatite powders...
FIGURES
First thumbnail for: Acidic demineralization of apatites studied by sca...
Second thumbnail for: Acidic demineralization of apatites studied by sca...
Third thumbnail for: Acidic demineralization of apatites studied by sca...
Journal Article
Published: 01 February 2005
Vadose Zone Journal (2005) 4 (1): 112–126.
...D. Wildenschild; J. W. Hopmans; M. L. Rivers; A. J. R. Kent Abstract Pore-scale multiphase flow experiments were developed to nondestructively visualize water flow in a sample of porous material using X-ray microtomography. The samples were exposed to similar boundary conditions as in a previous...
FIGURES
First thumbnail for: Quantitative Analysis of Flow Processes in a Sand ...
Second thumbnail for: Quantitative Analysis of Flow Processes in a Sand ...
Third thumbnail for: Quantitative Analysis of Flow Processes in a Sand ...