Troctolite76535
Autor:
NASA/Johnson Space Center photograph S73-19456.
Shortlink:
Zdroj:
Formát:
1881 x 2064 Pixel (1184045 Bytes)
Popis:
Troctolite sample 76535 brought back from the Moon by Apollo 17. This sample has a mass of 156 grams and is up to 5 centimeters across. It was collected as part of a rake sample at station 6 at the foot of the North Massif.
Another view of this sample was used in Figure 7-16 of the Apollo 17 Preliminary Science Report (SP-330, 1973), which has the following caption:
Coarse-grained norite (sample 76535) with fresh-appearing plagioclase (white to light gray) that has typical striations of albite twinning. Although pyroxenes (medium gray) are fractured along cleavage planes, they do not appear badly crushed.
Another view of this sample was used in Figure 7-16 of the Apollo 17 Preliminary Science Report (SP-330, 1973), which has the following caption:
Coarse-grained norite (sample 76535) with fresh-appearing plagioclase (white to light gray) that has typical striations of albite twinning. Although pyroxenes (medium gray) are fractured along cleavage planes, they do not appear badly crushed.
Komentář k Licence:
NASA-photograph: Public Domain
Licence:
Public domain
Credit:
Relevantní články
TroktolitTroktolit je ultramafická intruzivní magmatická hornina, která je tvořena převážně plagioklasem, alkalickými živci a olivínem. Jedná se o přechodnou horninu mezi peridotitem a anortitem. .. pokračovat ve čtení