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Lueders, Buff

Submitted by Raven Mueller on Thu, 2014-07-10 09:46
Trade Name Alias: 
Stone Type (Commercial): 
Availability: 
Available
Physical Data
Color: 
Munsell Color(s): 
Absorption (%): 
6.30
Modulus of Rupture, Dry (psi): 
1,277
Compressive Strength, Dry (psi): 
6,560
Geology
Stone Type (Lithologic): 
Chronostratigraphy: 
Rock Unit: 
Grain Shape: 
Subrounded
Rounded
Grain Sorting: 
Poorly-Sorted
Grain Size: 
Medium
Fine
Petrographic Description: 

Specimen: 2014-047
This is a fossiliferous limestone. The limestone is grain supported with a sparite cement matrix. Allochems constitute about 60 percent of slide area. These criteria define the limestone as a grainstone. Allochem composition is about 95 percent peloid and 5 percent bioclast. These estimates and the degree of sorting define the limestone as a sorted pelsparite. The identifiable bioclasts are ostracods with a maximum dimension of .7 mm, foraminifera with a maximum dimension of .3 mm and calcispheres with a maximum dimension near .2 mm. Peloids have a maximum dimension around .4 mm and a modal size range around .15. The size range of peloids is commensurate with a predominantly faecal origin. The cementing matrix has a mottled appearance and not all peloids are easily distinguished. Some amount of neomorphism also may have taken place as indicated by patchy size distributions in the sparite matrix. Collophane is very rare and has a maximum dimension of .3 mm. Iron hydroxides and opaque grains are present but are less than 1 percent of slide area. Extant voids are far less than 1 percent of slide area and are mostly vug like with a maximum dimension near .5 mm. Compaction is difficult to estimate. Allochem preservation and spacing is intermediate, perhaps suggesting moderate compaction prior to lithification.
MP 7/21/2015

Images

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Specimen ID
2014-047 Image of specimen in dry conditions. Finish: download image Close-up image of specimen in dry conditions. Finish: download image Image of specimen in wet conditions. Finish: download image Close-up image of specimen in wet conditions. Finish: download image

Thin Sections

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Specimen ID Non-polarized Cross-polarized
2014-047 Specimen shown in non-polarized light.download image Specimen shown in cross-polarized light.download image

Quarry

NOTE: Quarry locations are approximate.

Lueders Limestone Quarry (Continental Quarries, Inc.)
Florence , Texas
United States
32° 49' 51.1068" N, 99° 35' 36.744" W
Texas US

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