The Chemical Composition of Major Elements and Heavy Trace Metals in Chondrites Parambù and Marilia

Shima, Masako; Jochum, Klaus Peter; Sighinolfi, G. P.; Hintenberger, H.

doi:10.1111/j.1945-5100.1974.tb00075.x

Cited by 16 publications

(6 citation statements)

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“…Lauretta et al (2001) have reported bulk abundances of Hg of 294 ± 15 and 30 ± 1.5 ng•g − 1 for the Murchison and Allende carbonaceous chondrites, respectively. In addition, Shima et al (1974) have reported a bulk Hg analysis of 1330 ng•g −1 for the Parambu chondrite (state of Ceará, Brazil). The nature of the main meteorite impactor is under debate but short-lived Cr isotopic compositions of sedimentary rocks from the KTB, for some authors, point to a Hg-poor carbonaceous chondritetype bolide (e.g.…”

Section: Discussionmentioning

confidence: 99%

Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition

Sial

Lacerda

Ferreira

et al. 2013

Palaeogeography, Palaeoclimatology, Palaeoecology

103

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Section: Discussionmentioning

confidence: 99%

Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition

Sial

Lacerda

Ferreira

et al. 2013

Palaeogeography, Palaeoclimatology, Palaeoecology

103

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“…(1978), Okada etal. (1979), Shima (1974), Shima et al (1974) and Vilcsek (1959) were compiled for obtaining Ni/metal ratios. It was found that the H-and the L-group chondrites gave ratios 8.93 ± 0.73 (l o) % and 14.69 ± 1.92 (la) %*, respectively, which are not far from the above mean values; however, the ratios for L-group chondrites are rather variable.…”

Section: Discussionmentioning

confidence: 99%

Chemical Composition, Petrography and Mineralogy of the Shibayama Chondrite Found in Shibayama‐machi, Sanbu‐gun, Chiba‐ken, Japan

1979

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In April 1969, the chondrite was accidentally found in the side wall of the vegetable storage excavated at Shibayama‐machi, Sanbu‐gun, Chiba‐ken, Japan, by Mr. A. Ishii and his grandson, Mr. S. Ito. The chondrite named Shibayama has been weathered thoroughly for a long period of burial underground. The bulk chemical composition, especially total Fe (21.41%) and ratios of Fetotal/SiO2(0.557), SiO2/MgO (1.59) and molar composition of olivine (Fa23) and pyroxene (Fs22) as well as mineral composition, indicate that Shibayama is a typical olivine‐hypersthene chondrite. If the oxidized Fe is assumed only from metallic Fe, the original metallic Fe (7.75%) and Femetal/Fetotal(0.361) also support the above conclusion. From the well‐recrystallized texture, indistinct and obliterated chondrule‐matrix boundary, homogeneous composition of olivine and pyroxene, absence of igneous glass, and interstitial and well‐developed plagioclase, this chondrite could be classified in petrologic type 6. Mosaic texture, kink bands, undulatory extinction of silicate grains and maskelynitization of plagioclase indicate that Shibayama suffered from a heavy shock effect, as is seen in other L‐6 group chondrites.

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“…**Decay constants for 4He and 4°Ar ages are given by Steiger and Jager (1977). Dodd (1981) and for LL-chondrites, mean value of the original data by Jarosewich (1966), Jarosewich and Mason (1969), , Wiik (1961, 1964) and Shima et al (1974) is taken. **After Van Schmus and Wood (1967).…”

Section: Date Of Fallmentioning

confidence: 99%

Description, Chemical Composition and Noble Gases of the Chondrite Nogata

et al. 1983

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An ordinary chondrite weighing 472 g kept in the Shinto shrine, Suga Jinja, Nogata-shi, Fukuoka-ken, Japan. as INTRODUCTIONIt is well known that the meteorite recorded as the oldest observed fall in the world is the chondrite, Ensisheim, Alsace, France, dated as November 16,149216, (Hey, 1966 87 course, there are many records of meteorite-falls in the world before that, but specimens of these have not been retained.In 1979, an amateur astronomer, T. Magome, brought information about a meteorite to one of the authors, S.M., about a meteorite-like stone that had been kept in a Shinto Shrine, Suga Jinja, Nogata-shi, Fukuoka-ken, Japan, as a treasure of the Shrine. The stone, weighing 472 g, has the typical features of achondrite, and the date of the fall was written on the lid of a wooden box in which the stone was stored, as April 7, Jogan 3, corresponding to May 19, 861 on the Julian Calendar.By courtesy of the Shinto priest of Suga Jinja, M. Iwakuma, a piece ofthe specimen was given to us for scientific study. We divided this specimen into four parts: The first one was for mineralogical and petrographical studies, the second for analyses of chemical composition, major elements and chemical species, the third for extraction and determination of noble gases and the fourth for the determination of 53Mn. In addition, the whole stone was lent to us for measurement of natural radioactivities, mainly from 26AI and 4°K by Ge(Li) V-ray spectrometer without any treatment.In this report, we describe the circumstances of fall and results obtained in the above mentioned studies. THE CIRCUMSTANCES OF FALLThere are several annals, historical descriptions, and tales of the city of Nogata and of Suga Jinja, where the stone was kept. One of these, the most trustworthy article, Annals of Old-Shimosakai-mura (a part of Nogata-shi at present), was published in November 1927, and described the stone as follows: "On April 7, Jogan 3, 1066 years ago, a great detonation occurred in the precinct of the shrine, Suga Jinja, in this village. Villagers filled with surprise found a strange stone of fist-size falling onto the building of the shrine. It was called a flying stone, and is still kept at the Iwakurna's. The stone is 480 g in weight, triangular in shape, and brownish black in color covered with iron rust. According to the tradition, a brilliant flash was seen, accompanied by the detonation on the night ofthe meteorite fall; a black stone was found at the bottom of a newly made hole in the ground of the precinct (Shitama, 1979).In 1922, K. Yamada, a principal ofChikuho Mining School, recognized the stone as a meteorite (The Annals, 1927), but it was not reported to the scientific world.The shrine, Suga Jinja, is noted in history. The Annals (1927) records, "The shrine used to be called Butoku Jinja. In Tempyo 7 (735 A.D.), a religious service was offered for suppression of an epidemic disease in the country under the order of the local government, and in Jogan 15 (873 A.D.), the shrine was renamed Gion Jinja. It was a religious ce...

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The Chemical Composition of Major Elements and Heavy Trace Metals in Chondrites Parambù and Marilia

Cited by 16 publications

References 6 publications

Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition

Mercury as a proxy for volcanic activity during extreme environmental turnover: The Cretaceous–Paleogene transition

Chemical Composition, Petrography and Mineralogy of the Shibayama Chondrite Found in Shibayama‐machi, Sanbu‐gun, Chiba‐ken, Japan

Description, Chemical Composition and Noble Gases of the Chondrite Nogata

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