Relative Contributions of Uranium, Thorium, and Potassium to Heat Production in the Earth
Data from a wide variety of igneous rock types show that the ratio of potassium to uranium is approximately 1 $\times $ 10$^{4}$. This suggests that the value of K/U $\approx $ 1 $\times $ 10$^{4}$ is characteristic of terrestrial materials and is distinct from the value of 8 $\times $ 10$^{4}$ foun...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 1964-01, Vol.143 (3605), p.465-467 |
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| container_issue | 3605 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Wasserburg, G. J. Gordon J. F. Mac Donald Hoyle, F. Fowler, William A. |
| description | Data from a wide variety of igneous rock types show that the ratio of potassium to uranium is approximately 1 $\times $ 10$^{4}$. This suggests that the value of K/U $\approx $ 1 $\times $ 10$^{4}$ is characteristic of terrestrial materials and is distinct from the value of 8 $\times $ 10$^{4}$ found in chondrites. In a model earth with K/U $\approx $ 10$^{4}$, uranium and thorium are the dominant sources of radioactive heat at the present time. This will permit the average terrestrial concentrations of uranium and thorium to be 2 to 4.7 times higher than that observed in chondrites. The resulting models of the terrestrial heat production will be considerably different from those for chondritic heat production because of the longer half-life of U$^{238}$ and Th$^{232}$ compared with K$^{40}$. |
| doi_str_mv | 10.1126/science.143.3605.465 |
| format | Article |
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J. ; Gordon J. F. Mac Donald ; Hoyle, F. ; Fowler, William A.</creator><creatorcontrib>Wasserburg, G. J. ; Gordon J. F. Mac Donald ; Hoyle, F. ; Fowler, William A. ; California Inst. of Tech., Pasadena</creatorcontrib><description>Data from a wide variety of igneous rock types show that the ratio of potassium to uranium is approximately 1 $\times $ 10$^{4}$. This suggests that the value of K/U $\approx $ 1 $\times $ 10$^{4}$ is characteristic of terrestrial materials and is distinct from the value of 8 $\times $ 10$^{4}$ found in chondrites. In a model earth with K/U $\approx $ 10$^{4}$, uranium and thorium are the dominant sources of radioactive heat at the present time. This will permit the average terrestrial concentrations of uranium and thorium to be 2 to 4.7 times higher than that observed in chondrites. The resulting models of the terrestrial heat production will be considerably different from those for chondritic heat production because of the longer half-life of U$^{238}$ and Th$^{232}$ compared with K$^{40}$.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.143.3605.465</identifier><identifier>PMID: 17833743</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Aeons ; Bismuth ; Chondrites ; EARTH ; Eclogite ; GEOLOGY AND MINERALOGY ; HALF-LIFE ; Heat transfer ; HEATING ; IGNEOUS ROCKS ; METEORITES ; Planetary composition ; POTASSIUM ; POTASSIUM 40 ; RADIOACTIVITY ; Thermogenesis ; THORIUM ; THORIUM 231 ; URANIUM ; URANIUM 238</subject><ispartof>Science (American Association for the Advancement of Science), 1964-01, Vol.143 (3605), p.465-467</ispartof><rights>Copyright 1964 American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a471t-32c8b064ce13d4b5f53c67022a19ba559b7a53209a16d1e5a7d4b0d0580d6e8e3</citedby><cites>FETCH-LOGICAL-a471t-32c8b064ce13d4b5f53c67022a19ba559b7a53209a16d1e5a7d4b0d0580d6e8e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1712053$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1712053$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>315,781,785,804,886,2885,2886,27929,27930,58022,58255</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17833743$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/4114043$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Wasserburg, G. J.</creatorcontrib><creatorcontrib>Gordon J. F. Mac Donald</creatorcontrib><creatorcontrib>Hoyle, F.</creatorcontrib><creatorcontrib>Fowler, William A.</creatorcontrib><creatorcontrib>California Inst. of Tech., Pasadena</creatorcontrib><title>Relative Contributions of Uranium, Thorium, and Potassium to Heat Production in the Earth</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>Data from a wide variety of igneous rock types show that the ratio of potassium to uranium is approximately 1 $\times $ 10$^{4}$. This suggests that the value of K/U $\approx $ 1 $\times $ 10$^{4}$ is characteristic of terrestrial materials and is distinct from the value of 8 $\times $ 10$^{4}$ found in chondrites. In a model earth with K/U $\approx $ 10$^{4}$, uranium and thorium are the dominant sources of radioactive heat at the present time. This will permit the average terrestrial concentrations of uranium and thorium to be 2 to 4.7 times higher than that observed in chondrites. The resulting models of the terrestrial heat production will be considerably different from those for chondritic heat production because of the longer half-life of U$^{238}$ and Th$^{232}$ compared with K$^{40}$.</description><subject>Aeons</subject><subject>Bismuth</subject><subject>Chondrites</subject><subject>EARTH</subject><subject>Eclogite</subject><subject>GEOLOGY AND MINERALOGY</subject><subject>HALF-LIFE</subject><subject>Heat transfer</subject><subject>HEATING</subject><subject>IGNEOUS ROCKS</subject><subject>METEORITES</subject><subject>Planetary composition</subject><subject>POTASSIUM</subject><subject>POTASSIUM 40</subject><subject>RADIOACTIVITY</subject><subject>Thermogenesis</subject><subject>THORIUM</subject><subject>THORIUM 231</subject><subject>URANIUM</subject><subject>URANIUM 238</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1964</creationdate><recordtype>article</recordtype><recordid>eNpNkMGKFDEQhoMo7rj6BosEL17ssZJK0t1HGVZXWHCR3YOnkE7XMFlmkjVJC769GWdAT1VFfX8VfIxdCVgLIc3H4gNFT2uhcI0G9FoZ_YytBIy6GyXgc7YCQNMN0OsL9qqUR4C2G_EluxD9gNgrXLEf32nvavhFfJNizWFaakix8LTlD9nFsBw-8Ptdyn8bF2d-l6orpY28Jn5DrvK7nObFH2M8RF53xK9drrvX7MXW7Qu9OddL9vD5-n5z091--_J18-m2c6oXtUPphwmM8iRwVpPeavSmBymdGCen9Tj1TqOE0QkzC9KubxTMoAeYDQ2El-zd6W4qNdhmpZLf-RQj-WqVEAoUNuj9CXrK6edCpdpDKJ72excpLcX2iBLloEwj1Yn0OZWSaWufcji4_NsKsEfx9izeNvH2KN428S329vxgmQ40_wudTTfg6gQ8lpryf3shQSP-AcyBiRQ</recordid><startdate>19640131</startdate><enddate>19640131</enddate><creator>Wasserburg, G. 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Mac Donald ; Hoyle, F. ; Fowler, William A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a471t-32c8b064ce13d4b5f53c67022a19ba559b7a53209a16d1e5a7d4b0d0580d6e8e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1964</creationdate><topic>Aeons</topic><topic>Bismuth</topic><topic>Chondrites</topic><topic>EARTH</topic><topic>Eclogite</topic><topic>GEOLOGY AND MINERALOGY</topic><topic>HALF-LIFE</topic><topic>Heat transfer</topic><topic>HEATING</topic><topic>IGNEOUS ROCKS</topic><topic>METEORITES</topic><topic>Planetary composition</topic><topic>POTASSIUM</topic><topic>POTASSIUM 40</topic><topic>RADIOACTIVITY</topic><topic>Thermogenesis</topic><topic>THORIUM</topic><topic>THORIUM 231</topic><topic>URANIUM</topic><topic>URANIUM 238</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wasserburg, G. J.</creatorcontrib><creatorcontrib>Gordon J. F. Mac Donald</creatorcontrib><creatorcontrib>Hoyle, F.</creatorcontrib><creatorcontrib>Fowler, William A.</creatorcontrib><creatorcontrib>California Inst. of Tech., Pasadena</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Science (American Association for the Advancement of Science)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wasserburg, G. J.</au><au>Gordon J. F. Mac Donald</au><au>Hoyle, F.</au><au>Fowler, William A.</au><aucorp>California Inst. of Tech., Pasadena</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relative Contributions of Uranium, Thorium, and Potassium to Heat Production in the Earth</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>1964-01-31</date><risdate>1964</risdate><volume>143</volume><issue>3605</issue><spage>465</spage><epage>467</epage><pages>465-467</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><abstract>Data from a wide variety of igneous rock types show that the ratio of potassium to uranium is approximately 1 $\times $ 10$^{4}$. This suggests that the value of K/U $\approx $ 1 $\times $ 10$^{4}$ is characteristic of terrestrial materials and is distinct from the value of 8 $\times $ 10$^{4}$ found in chondrites. In a model earth with K/U $\approx $ 10$^{4}$, uranium and thorium are the dominant sources of radioactive heat at the present time. This will permit the average terrestrial concentrations of uranium and thorium to be 2 to 4.7 times higher than that observed in chondrites. The resulting models of the terrestrial heat production will be considerably different from those for chondritic heat production because of the longer half-life of U$^{238}$ and Th$^{232}$ compared with K$^{40}$.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>17833743</pmid><doi>10.1126/science.143.3605.465</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 1964-01, Vol.143 (3605), p.465-467 |
| issn | 0036-8075 1095-9203 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_733232846 |
| source | Science Magazine; JSTOR Archive Collection A-Z Listing |
| subjects | Aeons Bismuth Chondrites EARTH Eclogite GEOLOGY AND MINERALOGY HALF-LIFE Heat transfer HEATING IGNEOUS ROCKS METEORITES Planetary composition POTASSIUM POTASSIUM 40 RADIOACTIVITY Thermogenesis THORIUM THORIUM 231 URANIUM URANIUM 238 |
| title | Relative Contributions of Uranium, Thorium, and Potassium to Heat Production in the Earth |
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