Relevant bibliographies by topics / K-Ar and 40Ar

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'K-Ar and 40Ar'

Author: Grafiati
Published: 7 July 2024
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'K-Ar and 40Ar.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "K-Ar and 40Ar"

1

Lanphere, Marvin A. "Comparison of Conventional K–Ar and 40Ar/39Ar Dating of Young Mafic Volcanic Rocks." Quaternary Research 53, no. 3 (2000): 294–301. http://dx.doi.org/10.1006/qres.1999.2122.

Full text
Abstract:
AbstractK–Ar and 40Ar/39Ar ages have been measured on nine mafic volcanic rocks younger than 1 myr from the Snake River Plain (Idaho), Mount Adams (Washington), and Crater Lake (Oregon). The K–Ar ages were calculated from Ar measurements made by isotope dilution and K2O measurements by flame photometry. The 40Ar/39Ar ages are incremental-heating experiments using a low-blank resistance-heated furnace. The results indicate that high-quality ages can be measured on young, mafic volcanic rocks using either the K–Ar or the 40Ar/39Ar technique. The precision of an 40Ar/39Ar plateau age generally is
APA, Harvard, Vancouver, ISO, and other styles
2

Clauer, Norbert, and Abraham Lerman. "A Kinetic Explanation for Combined Potassium Gains and Radiogenic 40Argon Losses of Diagenetic Illite-Rich Clay Separates." Geosciences 12, no. 5 (2022): 186. http://dx.doi.org/10.3390/geosciences12050186.

Full text
Abstract:
In this study, a kinetic model sketches the concomitant K gain and radiogenic 40Ar loss of clay separates recovered from progressively buried sediments. Published K-Ar ages of clay separates from the Mahakam Delta, the Texas Gulf Coast, and the North Sea were used to constrain the modeling. As compared with analytical results, the model simulates changes relative to depth or to deposition time of the K-Ar ages from fine- and coarse-grained clay crystals. The decrease in the K-Ar ages of detrital-rich coarse-grained fractions (>2 μm) is bracketed with depth by K addition rates between 0.2 an
APA, Harvard, Vancouver, ISO, and other styles
3

Clauer, Norbert, and Abraham Lerman. "A Kinetic Explanation for Combined Potassium Gains and Radiogenic 40Argon Losses of Diagenetic Illite-Rich Clay Separates." Geosciences 12, no. 5 (2022): 186. http://dx.doi.org/10.3390/geosciences12050186.

Full text
Abstract:
In this study, a kinetic model sketches the concomitant K gain and radiogenic 40Ar loss of clay separates recovered from progressively buried sediments. Published K-Ar ages of clay separates from the Mahakam Delta, the Texas Gulf Coast, and the North Sea were used to constrain the modeling. As compared with analytical results, the model simulates changes relative to depth or to deposition time of the K-Ar ages from fine- and coarse-grained clay crystals. The decrease in the K-Ar ages of detrital-rich coarse-grained fractions (>2 μm) is bracketed with depth by K addition rates between 0.2 an
APA, Harvard, Vancouver, ISO, and other styles
4

Plint, H. E., and M. R. McDonough. "40Ar/39Ar and K–Ar age constraints on shear zone evolution, southern Taltson magmatic zone, northeastern Alberta." Canadian Journal of Earth Sciences 32, no. 3 (1995): 281–91. http://dx.doi.org/10.1139/e95-023.

Full text
Abstract:
New 40Ar/39Ar analyses of hornblende, muscovite, biotite, and K-feldspar constrain the timing of deformation and cooling of the southern Taltson magmatic zone, which underwent lower granulite to upper amphibolite grade deformation, in part synchronous with voluminous 1.99–1.92 Ga magmatism. New data are combined with existing K–Ar dates into a regional cooling framework to provide thermotemporal constraints on the deformational history. 40Ar/39Ar hornblende ages of ca. 1900 Ma are interpreted to record relatively rapid cooling following ductile thrusting on the Andrew Lake shear zone, and youn
APA, Harvard, Vancouver, ISO, and other styles
5

Carter, Jack, Ryan B. Ickert, Darren F. Mark, Marissa M. Tremblay, Alan J. Cresswell, and David C. W. Sanderson. "Production of <sup>40</sup>Ar by an overlooked mode of <sup>40</sup>K decay with implications for K-Ar geochronology." Geochronology 2, no. 2 (2020): 355–65. http://dx.doi.org/10.5194/gchron-2-355-2020.

Full text
Abstract:
Abstract. The decay of 40K to the stable isotopes 40Ca and 40Ar is used as a measure of time for both the K-Ca and K-Ar geochronometers, the latter of which is most generally utilized by the variant 40Ar∕39Ar system. The increasing precision of geochronology has forced practitioners to deal with the systematic uncertainties rooted in all radioisotope dating methods. A major component of these systematic uncertainties for the K-Ar and 40Ar∕39Ar techniques is imprecisely determined decay constants and an incomplete knowledge of the decay scheme of 40K. Recent geochronology studies question wheth
APA, Harvard, Vancouver, ISO, and other styles
6

Sato, Megumi, Hironobu Hyodo, Kei Sugiura, Tatsuki Tsujimori, and Tetsumaru Itaya. "Regional-Scale Paleoproterozoic Heating Event on Archean Acasta Gneisses in Slave Province, Canada: Insights from K–Ar and 40Ar/39Ar Chronology." Minerals 14, no. 4 (2024): 397. http://dx.doi.org/10.3390/min14040397.

Full text
Abstract:
Slave Province in Canada is an Archean granite–supracrustal terrane at the northwestern corner of the Canadian Shield. It is bordered by the Thelon–Taltson orogen (2.0 to 1.9 Ga) to the southeast and the Wopmay orogen (1.9 to 1.8 Ga) to the west. Acasta gneisses, exposed in the westernmost Slave Province, and the Wopmay rocks, located close to the gneisses, were systematically collected for K–Ar and laser step-heating 40Ar/39Ar single-crystal analyses of the biotite and amphibole. The K–Ar biotite ages of the four Wopmay samples range from 1816 ± 18 Ma to 1854 ± 26 Ma. The 40Ar/39Ar biotite an
APA, Harvard, Vancouver, ISO, and other styles
7

Jeans, C. V., J. G. Mitchell, M. J. Fisher, D. S. Wray, and I. R. Hall. "Age, origin and climatic signal of English Mesozoic clays based on K/Ar signatures." Clay Minerals 36, no. 4 (2001): 515–39. http://dx.doi.org/10.1180/0009855013640006.

Full text
Abstract:
AbstractThe K/Ar characteristics of 53 clay assemblages (Triassic–Cretaceous), representing the detrital, volcanogenic and arid-facies clay mineral associations, are interpreted in relation to their mineralogy, chronostratic age and geological origins. The K-bearing mineral components of the 1–2 μm, 0.2–1 μm and &lt;0.2 μm fractions of each clay assemblage together display one of two characteristic patterns of K2O and 40Ar values (the K/Ar signature of the assemblage) on a 40Ar/K2O correlation diagram. Interpretation of the K/Ar signatures indicates that: (1) all of these clay assemblages are
APA, Harvard, Vancouver, ISO, and other styles
8

Yudin, Denis, Nikolay Murzintsev, Alexey Travin, Taisiya Alifirova, Egor Zhimulev, and Sofya Novikova. "Studying the Stability of the K/Ar Isotopic System of Phlogopites in Conditions of High T, P: 40Ar/39Ar Dating, Laboratory Experiment, Numerical Simulation." Minerals 11, no. 2 (2021): 192. http://dx.doi.org/10.3390/min11020192.

Full text
Abstract:
Typically, 40Ar/39Ar dating of phlogopites from deep-seated xenoliths of kimberlite pipes produces estimates that suggest much older ages than those when these pipes were intruded. High-pressure (3 GPa) laboratory experiments enabled the authors to explore the behaviour of argon in the phlogopite structure under the conditions that correspond to the mantle, at the temperatures (from 700 to 1000 °С), far exceeding closure temperature of the K/Ar isotopic system. “Volume diffusion” remains foremost for describing the mobility of argon in phlogopite at high pressures. The mantle material age can
APA, Harvard, Vancouver, ISO, and other styles
9

Renne, Paul R. "Progress and Challenges in K-Ar and40Ar/39Ar Geochronology." Paleontological Society Papers 12 (October 2006): 47–66. http://dx.doi.org/10.1017/s1089332600001340.

Full text
Abstract:
K-Ar and more recently the40Ar/39Ar variant are well established dating methods. The40Ar/39Ar method requires irradiation with neutrons, posing some complications that are greatly outweighed by the benefits. The40Ar/39Ar method is particularly powerful due to the availability of internal reliability criteria, the ability to analyze single crystals, and the amenability of the analyses to automation.40Ar/39Ar dating has the capability for unsurpassed precision and is applicable to the broadest range of geologic environments and time scales of any radioisotope dating technique. For chronostratigr
APA, Harvard, Vancouver, ISO, and other styles
10

MARASCHIN, Anderson, Ana Maria MIZUSAKI, Paulo VASCONCELOS, Ruth HINRICHS, Luiz DE ROS, and Sylvia Dos ANJOS. "DEFINIÇÃO DA IDADE DEPOSICIONAL DA FORMAÇÃO AÇU (BACIA POTIGUAR, NORDESTE DO BRASIL) 40 39 ATRAVÉS DA DATAÇÃO." Pesquisas em Geociências 37, no. 2 (2010): 85. http://dx.doi.org/10.22456/1807-9806.22649.

Full text
Abstract:
Crescimentos autigênicos precoces de K-feldspato são abundantes nos arenitos fluviais cretácicos da Formação Açu (Bacia Potiguar), um dos mais importantes reservatórios onshore de hidrocarbonetos do Brasil. Estes crescimentos foram formados diretamente ao redor de K-feldspatos detríticos, em condições superficiais (eodiagênese inicial). A continuidade física entre crescimentos e grãos detríticos impossibilitou sua separação visando a aplicação do método convencional 40K- 40Ar. Assim, optou-se em aplicar o método 40 39 Ar- Ar diretamente nos crescimentos autigênicos de K-feldspato. Como resulta
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "K-Ar and 40Ar"

1

Gaylor, Jonathan. "40Ar/39Ar Dating of the Late Cretaceous." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-01017165.

Full text
Abstract:
As part of the wider European GTS Next project, I propose new constraints on the ages of the Late Cretaceous, derived from a multitude of geochronological techniques, and successful stratigraphic interpretations from Canada and Japan. In the Western Canada Sedimentary Basin, we propose a new constraint on the age of the K/Pg boundary in the Red Deer River section (Alberta, Canada). We were able to cyclostratigraphically tune sediments in a non-marine, fluvial environment utilising high-resolution proxy records suggesting a 11-12 precession related cyclicity. Assuming the 40Ar/39Ar method is in
APA, Harvard, Vancouver, ISO, and other styles
2

Hevia, Cruz Francisco. "Climatic and landscape evolution of the Azores over the past million years." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASJ035.

Full text
Abstract:
L'évolution des îles volcaniques résulte d'interactions complexes entre croissance des volcans et processus de destruction (éruptions explosives, glissements de terrain, érosion fluviale, altération). Les changements climatiques peuvent influencer ces processus sur des échelles variées. A l’échelle événementielle, des précipitations intenses peuvent engendrer des épisodes érosifs extrêmes. Sur le long-terme, des variations des taux d'altération, sensibles aux précipitations et à la température, peuvent impacter la fertilité des sols et le cycle global du carbone.Les îles volcaniques des Açores
APA, Harvard, Vancouver, ISO, and other styles
3

Coulié, Emmanuel. "Chronologie 40Ar/39Ar et K/Ar de la dislocation du plateau éthiopien et de la déchirure continentale à la corne de l'Afrique depuis 30 Ma." Paris 11, 2001. http://www.theses.fr/2001PA112284.

Full text
Abstract:
Ce travail de thèse présente le développement et la mise au point d'un procédé original pour la datation par la technique 40_Ar/39_Ar. Le cœur de ce système, un spectromètre de masse utilisant la collection simultanée des cinq isotopes de l'argon, est aujourd'hui unique à l'échelle internationale. Tout d'abord testé et validé sur des échantillons géologiques standard, ce système a permis de réaliser, dans sa configuration actuelle, des analyses de grande qualité sur les roches volcaniques de l'Ethiopie, avec une reproductibilité analytique de l'ordre de 0. 2%. Il est maintenant communément adm
APA, Harvard, Vancouver, ISO, and other styles
4

Most, Thomas. "Geodynamic evolution of the Eastern Pelagonian zone in north-western Greece and the Republic of Macedonia implications from U/Pb, Rb/Sr, K/Ar, 40Ar/39Ar geochronology and fission track thermochronology /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=96650268X.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Favier, Alexiane. "Évolution spatio-temporelle de l'hydrothermalisme dans la plaque supérieure de l'arc des Petites Antilles en Guadeloupe : applications aux systèmes géothermaux." Thesis, Antilles, 2019. http://www.theses.fr/2019ANTI0401.

Full text
Abstract:
Pour poursuivre le développement de la géothermie de haute-enthalpie dans l’arc insulaire des Petites Antilles il faut d’une part identifier de nouvelles zones potentielles et d’autre part mieux comprendre le fonctionnement des réservoirs géothermaux. Dans ce cadre, l’objectif de cette thèse est de caractériser l’évolution spatio-temporelle de l’hydrothermalisme au niveau de la plaque supérieure de l’arc en Guadeloupe au travers d’une analyse pluridisciplinaire (études structurales, géochimiques, minéralogiques, pétrologiques et géochronologiques) des complexes volcaniques les plus anciens de
APA, Harvard, Vancouver, ISO, and other styles
6

Most, Thomas [Verfasser]. "Geodynamic evolution of the Eastern Pelagonian zone in north-western Greece and the Republic of Macedonia : implications from U/Pb, Rb/Sr, K/Ar, 40Ar/39Ar geochronology and fission track thermochronology / vorgelegt von Thomas Most." 2003. http://d-nb.info/96650268X/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "K-Ar and 40Ar"

1

1952-, Burton William C., and Geological Survey (U.S.), eds. 40Ar/39 Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia. U.S. Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

1952-, Burton William C., and Geological Survey (U.S.), eds. 40Ar/39 Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia. U.S. Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

1952-, Burton William C., and Geological Survey (U.S.), eds. 40Ar/39 Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia. U.S. Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

1952-, Burton William C., and Geological Survey (U.S.), eds. 40Ar/39 Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia. U.S. Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

1952-, Burton William C., and Geological Survey (U.S.), eds. 40Ar/39 Ar age-spectrum data for amphibole, muscovite, biotite, and K-feldspar samples from metamorphic rocks in the Blue Ridge anticlinorium, northern Virginia. U.S. Geological Survey, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "K-Ar and 40Ar"

1

Morgan, Leah E. "40Ar/39Ar and K–Ar Geochronology." In Encyclopedia of Geoarchaeology. Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-1-4020-4409-0_45.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wijbrans, Jan R. "Metamorphic Terranes (K–Ar/40Ar/39Ar)." In Encyclopedia of Scientific Dating Methods. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-6326-5_44-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Wijbrans, Jan R. "Metamorphic Terranes (K–Ar/40Ar/39Ar)." In Encyclopedia of Marine Geosciences. Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-007-6304-3_44.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Morgan, Leah E. "40Ar/39Ar and K–Ar Geochronology." In Encyclopedia of Geoarchaeology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-44600-0_45-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Renne, Paul R. "K-Ar and 40Ar/39Ar Dating." In AGU Reference Shelf. American Geophysical Union, 2013. http://dx.doi.org/10.1029/rf004p0077.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

McDougall, Ian. "Volcanogenic Sedimentary Rocks (K/Ar, 40Ar/39Ar)." In Encyclopedia of Scientific Dating Methods. Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-007-6304-3_265.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Scaillet, Stéphane. "K-Ar (40Ar/39Ar) Geochronology of Ultrahigh Pressure Rocks." In When Continents Collide: Geodynamics and Geochemistry of Ultrahigh-Pressure Rocks. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9050-1_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dallmeyer, R. D., A. Reuter, N. Clauer, and N. Liewig. "Chronology of Caledonian tectonothermal activity within the Gaissa and Laksefjord Nappe Complexes (Lower Allochthon), Finnmark, Norway: Evidence from K—Ar and 40Ar/39Ar ages." In The Caledonide Geology of Scandinavia. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2549-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Wijbrans, J. R., and K. F. Kuiper. "K/AR AND 40AR/39AR DATING." In Encyclopedia of Quaternary Science. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-444-53643-3.00040-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wijbrans, J. R., and K. F. Kuiper. "K/Ar and 40Ar/39Ar Dating." In Encyclopedia of Quaternary Science. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-323-99931-1.00288-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "K-Ar and 40Ar"

1

Mercer, C. M., and K. V. Hodges. "ARAR — SOFTWARE TO ACCOUNT FOR DISCREPANCIES BETWEEN K/AR AND 40AR/39AR DATASETS PUBLISHED WITH DIFFERENT DECAY, ISOTOPIC, AND MONITOR-AGE PARAMETERS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286929.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "K-Ar and 40Ar"

1

Hunt, P. A., and J. C. Roddick. A compilation of K-Ar and 40Ar-39Ar ages: Report 23. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1993. http://dx.doi.org/10.4095/193342.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hunt, P. A., and J. C. Roddick. A compilation of K-Ar and 40Ar-39Ar ages: Report 24. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/195178.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hunt, P. A., and J. C. Roddick. A compilation of 40Ar-39Ar and K-Ar ages: Report 25. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207763.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kellett, D., S. Pehrsson, D. Skipton, et al. Thermochronological history of the northern Canadian Shield: a synthesis. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332507.

Full text
Abstract:
This contribution examines the current state of knowledge regarding the postmetamorphic cooling of most Archean to Paleoproterozoic tectonic elements of the northern Canadian Shield. This was achieved by building an extensive data set of over 2000 combined K-Ar and 40Ar/39Ar cooling ages. The Churchill Province (amalgamated Rae and Hearne cratons) shows a general west to east cooling pattern illustrated by two large-scale thermochronological profiles.
APA, Harvard, Vancouver, ISO, and other styles
5

Age of tephra beds at the Ocean Point dinosaur locality, North Slope, Alaska, based on K-Ar and 40Ar/39Ar analyses. US Geological Survey, 1992. http://dx.doi.org/10.3133/b1990c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'K-Ar and 40Ar' for particular source types:
Journal articles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography