MARC record from Internet Archive

LEADER: 02876cam 2200409 i 4500
001 5386108
005 20071022131533.0
008 751128s1975 ilua b 000 0 eng
010 $a 75018215
035 $a(OCoLC)ocm01949807
040 $aDLC$cDLC$dOCLCQ$dBTCTA$dUIU
043 $an-us-in
050 00 $aQE1$b.F4 vol. 33, no. 10$aQE991
082 00 $a550/.8 s$a561/.21/0977236
049 $aUIUU
100 1 $aWoodland, Bertram G.
245 10 $aTime factors of differentially preserved wood in two calcitic concretions in Pennsylvanian black shale from Indiana /$cBertram G. Woodland -- and Catherine K. Richardson --.
246 37 $aPreserved wood
260 $aChicago :$bField Museum of Natural History,$c1975.
300 $ap. 179-192 :$b4 ill. ;$c24 cm.
440 0 $aFieldiana.$pGeology ;$vv. 33, no. 10
490 1 $aField Museum of Natural History. Publication$v1206
500 $aCaption title.
500 $a"August 20, 1975."
500 $a"This volume is dedicated to Dr. Rainer Zangerl."
504 $aIncludes bibliographical references (p. 192).
520 3 $aA large concretion in the black shale above Springfield Coal Member (No. V), Desmoinesian Series, Pennsylvanian, from the Blackfoot #5 mine, Pike County, Indiana, contains a piece of fossil wood with excellent preservation of cell structure. Both ends of the wood extending outward to the extremities of the ovoid concretion are replaced by a black calcareous rock in which there is no fossil wood structure. These end zones have sharp contacts with the concretion matrix and their dimensions correspond to those of the fossil wood plus associated calcite veins. These relations indicate that the concretion must have been well-established before the wood had suffered any structural disintegration through bacterial activity. The preservation of the central section of the wood was the result of early concretion formation, while the ends continued to rot away as they were open to the environment. -- This is further evidence for the rapid early diagenetic origin of many concretions, particularlly those associated with well-preserved fossils.
550 $aFieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-).
650 0 $aTrees, Fossil$zIndiana$zPike County.
650 0 $aPaleobotany$yPennsylvanian.
650 0 $aPaleobotany$zIndiana$zPike County.
650 0 $aShale$zIndiana$zPike County.
700 1 $aRichardson, Catherine Kessler,$d1949-$ejoint author.
740 01 $aTime factors of differentially preserved wood ...
830 0 $aPublication (Field Museum of Natural History) ;$v1206.
938 $aBaker and Taylor$bBTCP$n75018215 //r903
994 $aC0$bUIU