| MetSoc Home Publications Contacts |
|
||
|
||
| Lewis Cliff 86022 | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic information | Name: Lewis Cliff 86022 This is an OFFICIAL meteorite name. Abbreviation: LEW 86022 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  352 g | ||||||||||||||||||||||||
| Classification history: |
This is the only approved meteorite classified as L3.2-3.5. Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||
| Comments: | Field number: 4971 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 11(1):
Sample No.: LEW86022 Location: Lewis Cliff Weight (g): 351.7 Field No.: 4971 Dimensions (cm): 8.5x5x7 Meteorite Type: L3 Chondrite
Macroscopic Description: Roberta Score LEW86022 is a weathered chondrite fragment that is highly polished and iridescent, retains 40% of its original fusion crust, and has greenish streaks of oxidation on the exterior surfaces. Abundant inclusions are still obvious in the extensively weathered interior.- A minute amount of "salts" is present in the interior.
Thin Section (,4) Description: Brian Mason The section shows a close-packed mass of chondrules (up to 2.9 mm across), chondrule fragments, and irregular granular aggregates, set in a small amount of opaque matrix which includes minor amounts of nickel-iron and troilite. Most chondrules consist of granular or porphyritic olivine, some with polysynthetically twinned clinopyroxene. Microprobe analyses give the following compositions: olivine, Fa6-34, mean Fa18 (CV FeO is 46); pyroxene, Fs1-31. The meteorite is classified as an L3 chondrite (estimated L3.5); it is similar to LEW85396 and 85401, and the possibility of pairing should be considered. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 3065: |
|
||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||
| References: | Published in Antarctic Meteorite Newsletter 11(1) (1988), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
| ||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
| Proximity search: | |||||||||||||||||||||||||
| Crosslinks: |
This lists all records that are linked to this record and to each other.
| ||||||||||||||||||||||||
| Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||||||
| Revision history: |
This lists important revisions made to data for this record.
| ||||||||||||||||||||||||