Matches in SemOpenAlex for { <https://semopenalex.org/work/W1628993010> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W1628993010 abstract "A fragment of a carbonaceous chondrite (#53.12, maximal dimension about 2 mm) containing a phyllosilicate-sulfide vein was found during an inspection of small pieces of the Kaidun meteorite. Phyllosilicate veins are apparently rare in carbonaceous chondrites and have so far only been reported from the Y82162 CI chondrite. In hand sample the vein was visible on two perpendicular faces. The polished section prepared from one side displays a complex structure. A single vein, 150 microns in width, bifurcates, and each branch narrows toward a large rounded object (RO). The section contains abundant ROs, most of them less than or equal to 100 microns in diameter. The vein has sharp contacts to the surrounding matrix, whereas the RO contacts are diffuse. The phyllosilicate in the main vein has a massive texture along the contact, which becomes platy toward the vein center where the crystals protrude into an open space. The texture of the largest RO resembles that of a barred olivine (BO) chondrule. Some of the smaller ROs also texturally resemble chondrules. The BO chondrule contains rounded sulfide-silicate objects and small metal grains covered by oxides. Phyllosilicates of the main vein consist mainly of serpentine. The phyllosilicate near the contact with the matrix has low contents of minor elements and a high Mg/Fe ratio. The composition changes in a regular manner toward the center: Al, Na, Ca, Ni, and S increase, indicating increasing amounts of sulfates admixed. The phyllosilicate vein could only have formed after a substantial rock was formed. Mechanical stress probably opened a crack that was subsequently filled by phyllosilicate, pyrrhotite, and finally by a (Fe,Mg)-sulfate. The source of the matter mobilized to form the vein could have been within the rock itself or outside. No compositional or mineralogical zoning is apparent at the vein-rock contacts. The nature of the transporting agent (liquid H2O or vapor) must also remain an enigma. M. Zolensky has recently observed similar phyllosilicate-filled veins in dark, wet clasts in the Al Rais CR chondrite." @default.
- W1628993010 created "2016-06-24" @default.
- W1628993010 creator A5000735939 @default.
- W1628993010 creator A5031070457 @default.
- W1628993010 creator A5033176490 @default.
- W1628993010 creator A5056095515 @default.
- W1628993010 creator A5087737318 @default.
- W1628993010 date "1994-07-01" @default.
- W1628993010 modified "2023-09-27" @default.
- W1628993010 title "A phyllosilicate-sulfide vein in Kaidun" @default.
- W1628993010 hasPublicationYear "1994" @default.
- W1628993010 type Work @default.
- W1628993010 sameAs 1628993010 @default.
- W1628993010 citedByCount "1" @default.
- W1628993010 crossrefType "journal-article" @default.
- W1628993010 hasAuthorship W1628993010A5000735939 @default.
- W1628993010 hasAuthorship W1628993010A5031070457 @default.
- W1628993010 hasAuthorship W1628993010A5033176490 @default.
- W1628993010 hasAuthorship W1628993010A5056095515 @default.
- W1628993010 hasAuthorship W1628993010A5087737318 @default.
- W1628993010 hasConcept C115961682 @default.
- W1628993010 hasConcept C116862484 @default.
- W1628993010 hasConcept C118552586 @default.
- W1628993010 hasConcept C121332964 @default.
- W1628993010 hasConcept C127313418 @default.
- W1628993010 hasConcept C130635790 @default.
- W1628993010 hasConcept C154945302 @default.
- W1628993010 hasConcept C15744967 @default.
- W1628993010 hasConcept C165783156 @default.
- W1628993010 hasConcept C185592680 @default.
- W1628993010 hasConcept C191897082 @default.
- W1628993010 hasConcept C192562407 @default.
- W1628993010 hasConcept C199289684 @default.
- W1628993010 hasConcept C2777202286 @default.
- W1628993010 hasConcept C2780596425 @default.
- W1628993010 hasConcept C2780609349 @default.
- W1628993010 hasConcept C2781195486 @default.
- W1628993010 hasConcept C41008148 @default.
- W1628993010 hasConcept C8010536 @default.
- W1628993010 hasConcept C87355193 @default.
- W1628993010 hasConceptScore W1628993010C115961682 @default.
- W1628993010 hasConceptScore W1628993010C116862484 @default.
- W1628993010 hasConceptScore W1628993010C118552586 @default.
- W1628993010 hasConceptScore W1628993010C121332964 @default.
- W1628993010 hasConceptScore W1628993010C127313418 @default.
- W1628993010 hasConceptScore W1628993010C130635790 @default.
- W1628993010 hasConceptScore W1628993010C154945302 @default.
- W1628993010 hasConceptScore W1628993010C15744967 @default.
- W1628993010 hasConceptScore W1628993010C165783156 @default.
- W1628993010 hasConceptScore W1628993010C185592680 @default.
- W1628993010 hasConceptScore W1628993010C191897082 @default.
- W1628993010 hasConceptScore W1628993010C192562407 @default.
- W1628993010 hasConceptScore W1628993010C199289684 @default.
- W1628993010 hasConceptScore W1628993010C2777202286 @default.
- W1628993010 hasConceptScore W1628993010C2780596425 @default.
- W1628993010 hasConceptScore W1628993010C2780609349 @default.
- W1628993010 hasConceptScore W1628993010C2781195486 @default.
- W1628993010 hasConceptScore W1628993010C41008148 @default.
- W1628993010 hasConceptScore W1628993010C8010536 @default.
- W1628993010 hasConceptScore W1628993010C87355193 @default.
- W1628993010 hasIssue "4" @default.
- W1628993010 hasLocation W16289930101 @default.
- W1628993010 hasOpenAccess W1628993010 @default.
- W1628993010 hasPrimaryLocation W16289930101 @default.
- W1628993010 hasVolume "29" @default.
- W1628993010 isParatext "false" @default.
- W1628993010 isRetracted "false" @default.
- W1628993010 magId "1628993010" @default.
- W1628993010 workType "article" @default.