{"refrec":{"BRefID":305300,"RR":"<b>Turekian, K.K.; Armstrong, R.L.</b> (1961). Chemical and mineralogical composition of fossil molluscan shells from the Fox Hills Formation, South Dakota. <i>Geol. Soc. Am. Bull. 72(12)</i>: 1817-1828. <a href=\"https://dx.doi.org/10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2\" target=\"_blank\">https://dx.doi.org/10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2</a>","BEntID":297597,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geol. Soc. Am. Bull. 72(12)</i>: 1817-1828. <a href=\"https://dx.doi.org/10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2\" target=\"_blank\">https://dx.doi.org/10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Turekian, K.K.; Armstrong, R.L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Turekian, K.K.; Armstrong, R.L.","Englishabstract":"Chemical composition and mineralogy of a large number of samples of molluscan shell material from limy concretions in the Fox Hills Formation (Cretaceous) of South Dakota were determined. The results show an extremely wide range of concentrations for the minor elements Mg, Fe, Mn, Sr, and Ba and of calcite-aragonite ratios. Detailed studies of an ammonite, Sphenodiscus, a characteristic faunal element of this formation, showed that the range of minor-element concentrations could best be interpreted as the consequence of at least two separate alteration processes, involving contamination and recrystallization, probably during diagenesis. Neither visual nor mineralogic criteria can be used to predict the degree of alteration of the original shell composition. Since the alteration processes may have both added and subtracted material, one must be cautious in accepting any fossil-shell-composition data as representative of the originally deposited test.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Chemical and mineralogical composition of fossil molluscan shells from the Fox Hills Formation, South Dakota","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:33:14.349315","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1961,"MonPub":null,"DateUpdate":"2019-02-06","DateCreate":"2019-02-05","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1961WJ17300008","VABBcode":null,"OpenAcc":0,"DOI":"10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2"},"refs":null,"anarec":{"AnaID":305300,"PubliDate":1961,"Pagination":"1817-1828","XtraPublOfAnaID":null,"ISBN":null,"Volume":"72","Issue":"12","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42912,"SerRR":"Geological Society of America bulletin. GEOLOGICAL SOC AMER, INC: New York, N.Y..  ISSN 0016-7606; e-ISSN 1943-2674","StandardTitleSer":"Geological Society of America bulletin","ISSN":"0016-7606","AbbrevSer":"Geol. Soc. Am. Bull.","StandardTitleMon":null,"StartPage":1817,"Pages":12,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Turekian","Firstname":"Karl","Initials":"K.K.","Affiliation":"Yale Univ, Dept Geol, New Haven, CT 06520 USA.","Discriminator":null,"CorporateFlag":0,"BEntID":297597,"AutID":294595,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Armstrong","Firstname":null,"Initials":"R.L.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":297597,"AutID":361194,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":323368,"LibID":36,"BRefID":305300,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"323368","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"GEOLOGICAL SOC AMER, INC","City":"New York, N.Y."}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":297597,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":297597,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2","externalID":"10.1130/0016-7606(1961)72[1817:camcof]2.0.co;2","URLTypeCode":"DOI","URLID":70979,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2019-02-05 09:20:19.263000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Chisala, Chilekwa, C.","updSesDate":{"date":"2019-02-06 08:30:59.743000","timezone_type":3,"timezone":"Europe/Brussels"}}}