{"title":"Dating zircon by combined use of fission and alpha tracks","authors":"M. Kasuya, H. Iwano, T. Danhara","doi":"10.1016/1359-0189(93)90193-D","DOIUrl":"10.1016/1359-0189(93)90193-D","url":null,"abstract":"<div><p>A new approach to dating zircon by combining fission and alpha tracks is described. In this method (alpha track method), spontaneous fission tracks in a sample are counted routinely and alpha tracks originating from the sample are counted on a plastic track detector. Uranium content of the sample is monitored based on the alpha track density and the detection time. Radioactive equilibrium and equal Th/U ratios among samples are assumed. A comparison between the conventional fission track method and the alpha track method has been made using age standard and other zircon samples. The results suggest that the alpha track method provides acceptable dating results when internal zircon surfaces are used for track counts. The alpha track method should be beneficial to those who do not have close access to neutron irradiation facilities.</p></div>","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Pages 525-533"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90193-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77734446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Testing models of fission track annealing in apatite in a simple thermal setting: site 800, ODP LEG 129","authors":"","doi":"10.1016/1359-0189(93)90257-A","DOIUrl":"10.1016/1359-0189(93)90257-A","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 612"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90257-A","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"103482393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bart J. Kowallis , Eric H. Christiansen , Brent H. Everett , Kevin D. Crowley , Charles W. Naeser , Donald S. Miller , Alan L. Deino
{"title":"Possible secondary apatite fission track age standard from altered volcanic ash beds in the middle Jurassic Carmel Formation, Southwestern Utah","authors":"Bart J. Kowallis , Eric H. Christiansen , Brent H. Everett , Kevin D. Crowley , Charles W. Naeser , Donald S. Miller , Alan L. Deino","doi":"10.1016/1359-0189(93)90192-C","DOIUrl":"10.1016/1359-0189(93)90192-C","url":null,"abstract":"<div><p>Secondary age standards are valuable in intra- and interlaboratory calibration. At present very few such standards are available for fission track dating that is older than Tertiary. Several altered volcanic ash beds occur in the Middle Jurassic Carmel Formation in southwestern Utah. The formation was deposited in a shallow marine/sabhka environment. Near Gunlock, Utah, eight ash beds have been identified. Sanidines from one of the ash beds (GUN-F) give a single-crystal laser-probe <sup>40</sup>Ar/<sup>39</sup>Ar age of 166.3±0.8 Ma (2<em>σ</em>). Apatite and zircon fission track ages range from 152–185 Ma with typically 15–20 Ma errors (2σ). Track densities in zircons are high and most grains are not countable. Apatites are fairly common in most of the ash beds and have reasonable track densities ranging between 1.2–1.5 × 10<sup>6</sup> tracks/cm<sup>2</sup>. Track length distributions in apatites are unimodal, have standard deviations <1<em>μ</em>m, and mean track lengths of about 14–14.5 μm. High Cl apatites (F:Cl:OH ratio of 39:33:28) are particularly abundant and large in ash GUN-F, and are fairly easy to concentrate, but the concentrates contain some siderite, most of which can be removed by sieving. GUN-F shows evidence of some reworking and detriaal contamination based on older single grain <sup>40</sup>Ar/<sup>39</sup>Ar analyses and some rounding of grains, but the apatite population appears to be largely uncontaminated. At present BJK has approximately 12 of apatite separate from GUN-F.</p></div>","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Pages 519-524"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90192-C","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90875968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Donald S. Miller , Kevin D. Crowley , Roy K. Dokka , Rex F. Galbraith , Bart J. Kowallis , Charles W. Naeser
{"title":"Results of interlaboratory comparison of fission track ages for 1992 fission track workshop","authors":"Donald S. Miller , Kevin D. Crowley , Roy K. Dokka , Rex F. Galbraith , Bart J. Kowallis , Charles W. Naeser","doi":"10.1016/1359-0189(93)90197-H","DOIUrl":"10.1016/1359-0189(93)90197-H","url":null,"abstract":"<div><p>Two apatites and one sphene were made available to the fission track research community for analysis prior to the 1992 Fission Track Workshop held in Philadelphia, U.S.A., 13–17 July. Eighteen laboratories throughout the world received aliquots of apatite and sphene. To date, analyses by 33 different scientists have been representing 15 different laboratories. With respect to the previous two interlaboratory comparisons, there is a noticeable improvement in the accuracy of the age results (Naeser and Cebula, 1978; Naeser <em>et al.</em>, 1981; Miller <em>et al.</em>, 1985;Miller <em>et al.</em>1990). Ninety-four percent of the analysis used the external detector method (EDM) combined with the zeta technique while the remaining individuals used the population method (POP). Track length measurements (requested for the first time in the interlaboratory comparison studies) were in relatively good agreement.</p></div>","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Pages 565-573"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90197-H","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78660916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The mesozoic to cenozoic thermal history of south Norway as revealed by apatite fission track analysis (AFTA) and thermal modelling studies","authors":"M. Rohrman, P.A. van der Beek, P.A.M. Andriessen","doi":"10.1016/1359-0189(93)90280-M","DOIUrl":"10.1016/1359-0189(93)90280-M","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 623"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90280-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76120185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alún O'Brien, Anthony J. Hurford, Cherry L.E. Lewis, Philip Rose
{"title":"The thermal history of the sole pit basin, southern North Sea: a classic inversion","authors":"Alún O'Brien, Anthony J. Hurford, Cherry L.E. Lewis, Philip Rose","doi":"10.1016/1359-0189(93)90209-R","DOIUrl":"https://doi.org/10.1016/1359-0189(93)90209-R","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 588"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90209-R","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72206746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fission-track analysis of sandstones from Tyee Basin, Southwestern Oregon","authors":"Shari A. Kelley, David D. Blackwell","doi":"10.1016/1359-0189(93)90225-X","DOIUrl":"https://doi.org/10.1016/1359-0189(93)90225-X","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 596"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90225-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72206748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Apetite etching characteristics versus chemical composition","authors":"","doi":"10.1016/1359-0189(93)90241-Z","DOIUrl":"https://doi.org/10.1016/1359-0189(93)90241-Z","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 604"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90241-Z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72206750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Middle miocene extension in the betic Cordillera, SE Spain: constraints from fission track analysis","authors":"Kit Johnson","doi":"10.1016/1359-0189(93)90279-I","DOIUrl":"10.1016/1359-0189(93)90279-I","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 623"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90279-I","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"93685652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Apatite fission-track thermochronology of two paleozoic terranes (Naab Massif, Germany and Brabant Massif, Belgium) and a comparison with conodont data","authors":"Vercoutere C., Van den haute P., Helsen S.","doi":"10.1016/1359-0189(93)90281-D","DOIUrl":"10.1016/1359-0189(93)90281-D","url":null,"abstract":"","PeriodicalId":82207,"journal":{"name":"Nuclear Tracks And Radiation Measurements","volume":"21 4","pages":"Page 624"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/1359-0189(93)90281-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88482015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}