Packstone

Packstone can be recognized locally as the precursor sediments (Fig. 6 B). Bird's eye texture is common and mineral pseudomorphs after anhydrite can be found in the breccias (Fig. 6 C, D), indicating that this horizon of dolostones deposited in a sabkha environment, i.e., the uppermost part of the supratidal flat facies.

Packstone and grainstone are classified as high grade for cement raw material, while wackestone is classified as low grade for cement raw material. 1.packstone and bioclastic-wackestone m icrofacies respectively. Based on the integration of the outcrop data, biostratigraphic and microfacies information, Wargal Limestone is suggested toFifteen principal sedimentary microfacies have been identified in the Mishrif Formation includes Limemudstone, Mudstone-Wackestone, Wackestone, Wackestone-Packstone, Packstone, Packstone ...Chert E . Skeletal packstone or grainstone, or limestone F. Mudstone or Claystone, or Shale ____. 1 points QUESTION 8 1. Exercise 1 Post-Lab Questions: Compare the environments listed in Table 4 (below) and the descriptions and rock names you listed in Table 6 (Data Sheet). Identify the possible environment(s) for each sample below.packstone: a limestone composed of grains (ooids, peloids, bioclasts, or intraclasts) and lime mud (micrite). Rock is grain-supported and micrite simply fills in spaces between grains that are in contact with one another. grainstone: a limestone composed of grains, but lacking lime mud (micrite). Spaces between grains are filled with spar (cement).

The deposit has a sharp erosional base, whereas the contact with the overlying bioclastic packstone lithology is transitional due to bioturbation. In the lower part of Subunit IB, below 200 mbsf, the deposits are alternating layers of bioclastic wackestone and packstone, with a thin bed of nannofossil ooze overlying a firmground at the base.Pack is characterized by solid, full colors on which irregular decorations emerge, inspired by the fragmentation of the polar ice floes. Made in 6″x6″ sizes, it ...Lake Michigan packstone with some little brachiopod fossils. Approx. 1.75 inches. More Lake Michigan rocks available in my shop!Molluscan packstone—The gastropod packstone facies consists of massive, tan orange to grey lime packstone 10–30 cm thick with locally abundant stick bryozoa, and gastropod and ostracod debris. The siliciclastic fraction …In the upper part of the lower member, in MT 5 samples, skeletal floatstone/packstone predominates, less often grainstone one formed by bioclasts, especially echinoids and detritus of bivalve and oyster shells (Fig. 9 B and C), while matrix similar to MT 1 and MT 4 disappears over a short distance. Sponges and serpulids also occur.This microfacies has a grainstone to packstone texture primarily composed of foraminifera other than fusulinids along with few fusulinids, brachiopods, bivalves and micritized grains (Fig. 4 B). The diversified assemblage of foraminifera and low matrix content indicate a moderate-energy open-marine environment. The initial inter- and intra ...

The entire columns are surrounded by bioclastic packstone to grainstone. The thrombolite-like mounds are domes a maximum of 100 cm high and 40-60 cm wide embedded within lime mud and shale.Download scientific diagram | The difference between grainstone oolitic facies and peloidal packstone observed at wells A and B. (A) Oolitic grainstone (core sample) with high porosity and a dark ...Packstone-grainstone texture has largely been preserved. Echinoderm fragments with textures preserved or molds filled by cement predominate with some identifiable sponge spicule molds filled with cement. Note chalcedony cement (brown) lines primary pores followed by later pore-filling clear megaquartz cement. ...The grainstone and packstone facies are both of high energy, and the distinguishing controlling factor between them is the more-or-less stable high-energy condition in grainstones which allows the winnowing of the micrite. The CCA for the non-microbial carbonates, assumed this energy control, gives only a marked index controlling 85.9% of the ...c. Packstone ( Grain supported ) Packstone mrupakan jenis batuan karbonat yang memiliki kandungan fragmen yang lebih banyak dibandingkan dengan mudstone dan weckstone. Artinya batuan ini mengandung banyak fragmen sehingga memungkinkan fragmennya akan bersinggungan di dalam matriks lumpur. Butirannya berkisar pada ukuran 2 mm hinga 0,064

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Figure 9.1 A illustrates the summary of diagenetic and porosity characteristics of a carbonate ramp during a third-order sea-level lowstand under humid climatic conditions. Because of the gentle dip of the ramp-to-basin slope, lowstand prograding complexes, featuring high-energy grainstones, can commonly form seaward of the lowstand shoreline (Fig. 9.1 B).Basinal limestone is mainly represented by resedimented intraclastic-bioclastic packstone to wackestone, as carbonate pelagic contribution to sedimentation is negligible to absent in the Middle Triassic. Sediment composition indicates that basinal limestones are the product of the resedimentation of sediments produced on the platform top. These ...In the lagoonal boreholes, Holocene sediment consists of Halimeda, mollusk packstone and wackestone. In the island boreholes nearest the lagoon, Holocene sediments generally consist of skeletal grainstone in the beach areas, skeletal packstone to grainstone on the islands themselves, and coarse-grained gravel and rudstone to floatstone on the …Formally defined, a stromatolite is an accretionary organosedimentary structure, commonly thinly layered, megascopic, and calcareous, produced by the activities of mat-building communities of mucilage-secreting microorganisms, filamentous and coccoid photoautotrophic prokaryotes such as cyanobacteria. Usage of the term, however, is …PaxLock is access control in a wireless door handle, that works standalone or alongside our Net2 and Paxton10 networked access control systems. The design is compatible with any DIN standard lock for a quick and simple installation. Its smart, compact appearance and standalone or networked operation means it can be used in a broad range of ...The > 2 mm allochems in floatstones float in grainstone/packstone matrix and not in mudstone/wackestone matrix. Although it has been mentioned in the literature that packstones might be originally deposited as grainstones (e.g. Dunham, 1962; Wright, 1992; Adams and MacKenzie, 1998), there are no adequate discussions or petrographic ...

1. Inroduction. The identification of lithologies is the basis of reservoir characteristic research and geological modeling. It is significant in the fields of oil and gas development as well as mineral resource exploration (Yao et al., 2018).The complexity and heterogeneity of the geological environment result in the distribution of logging datasets is extremely unbalanced, which makes it ...The Dunham classification system for carbonate sedimentary rocks was originally devised by Robert J. Dunham in 1962, [1] and subsequently modified by Embry and Klovan in 1971 [2] to include coarse-grained limestones and sediments that had been organically bound at the time of deposition. The modified Dunham Classification has subsequently ...bioturbated, laminated to very thin bedded, bivalve skeletal detritus, pellet wackestone to mud-dominated packstone. These lithofacies shallow-upward into oxygenated, gray, bioturbated, thin bedded, wackestone to mud-dominated packstone, which is considered a non-reservoir facies.Packstone: a grain-supported carbonate rock with considerable amount of micrite (10%) (Dunham 1962) Paragenesis: a sequential order of mineral formation or transformation. Pelagic: describes the biota that lives in the water column and the sediment generated by these creatures and plants. pellets: it is a grain (allochem) composed entirely of ...On April 1, 2020, Wake Stone Corporation reached its 50 th anniversary as a family-owned and managed construction aggregates company. What John Bratton founded in 1970 as a 100-acre location in Knightdale, North Carolina has grown into a company with four quarries in eastern North Carolina, one quarry in eastern South Carolina, thousands of acres in land-holdings, and the addition of ...PAXTON LONG SLEEVE CATSUIT. $69.90. PAXTON SEXY SINGLE MESH LONG SLEEVE BODYSUIT IN ORANGE. $22.90. PAXTON TONI TANK TOP. $22.90. The PAXTON line made of cute basics for women. Shop ribbed bodysuits, tank dresses, knot t-shirts and more at AKIRA!Packstone mempunyai tekstur grain supported dan punya matriks mud. Dunham punya istilah Boundstone untuk batugamping dengan fabrik yang mengindikasikan asal-usul komponenkomponennya yang direkatkan bersama selama proses deposisi. Klasifikasi Dunham (1962) punya kemudahan dan kesulitan. Kemudahannya tidak perlu menentukan jenis butiran dengan ...Well logs data faciesE-Bedding plane view of a transgressive lag of intraclasts at the base of a bed of foram packstone and grainstone that overlies a bed of fenestral dolomudstone. Hammer head is 17 cm long.Packstone 0.3 Bed-bound 0.2 1.5 N55E N17W Grain-Dominated Packstone 0.3 Through-going 0.27 1.1 N61E N08W . W E 2 m 2 m W E Compressional Buckling Lithofacies Bed thickness (m) Fracture Style Average Spacing (m) Normalized FSI Orientation Grain-Dominated Packstone 0.28 All 0.13 2.2 N69E N80W Grain-Dominated ...In oil and gas industry, classifying carbonate rocks is a major step in core and thin section description. Two classification systems have been widely used in the industry: Folk (1959,1962) Classification. Dunham (1962) Classification. Both classifications provide an indication of depositional energy setting and reservoir quality.

Pelloid bioclastic packstone microfacies. This facies consists of gray, medium to thick beds of a peloid bioclast packstone. Peloids (40%) are the most abundant components in this microfacies and most peloids are uniform in size (Fig. 6 E). The skeletal debris forms 30% of this facies and consists of echinoderms, brachiopods and algae.

Ooid grainstone/packstone carbonate facies of the Dalan, Kangan, and Arab formations are the main hydrocarbon reservoirs in the Persian Gulf. Based on detailed petrographic and petrophysical analyses, sedimentological and mineralogical features of the Permian to Late Cretaceous carbonate and iron-rich coated grains from Zagros and the Persian Gulf were investigated.Bioclastic packstone or grainstone with a large proportion of small grains (e.g., foraminifers, algae) locally occurs in the reefs, in which pore-lining cements (e.g., thin cement rims) consisting of fibrous, bladed, or microcrystalline crystals are common within smaller intraparticle voids (Fig. 7a).The mid-inner ramp is dominated by wackestone/packstone with abundant Cloudina skeletal debris and ooid packstone/grainstone shoal deposits. Locally, fragments of Corumbella and Cloudina are found on the same horizon, which is a result of their high accumulation rate, resulting from the reworking and mixing of epifaunal organisms.The limestones, though they occur in five distinct types of deposits, are texturally similar. They range from skeletal grainstone to wackestone but are predominantly poorly sorted skeletal packstone (Fig. 4a, b). The bulk of the skeletal grains are sand size; larger skeletal fragments and whole individuals make up only a small part of the rock; the matrix ranges from lime- to volcanogenic mud.Coated crinoidal packstone facies occurs at the bottom and the upper half of the cycle is characterized by oolitic grainstones with quartz fragments (Fig. 12, F1). This type of cycle is sometimes capped by quartz arenitic sandstones, indicating a shallowing trend leading to subaerial exposure (F2).part of Hamilton Group 200-500 ft. (60-150 m). Secondary unit descriptions from USGS Lexicon website (ref. NY046) and reference NY013, NY014, NY015, NY022: The Ludlowville Formation of western NY has been subdivided since 1930 into four members: the Centerfield Limestone (4-14 m), the Ledyard Shale (10-30 m), the Wanakah Member (12-21 m), and ...Argillaceous Dolo- Biomicrite wackes tone to packstone This microfacies association occ urs in the Wata Formation and consists of microcrystalline mud with a considerable amount of allochemes more ...Carbonate lagoons are generally sites of wackestone and packstone deposition (Nichols 2009). Lithofacies (F 2): Medium- to coarse-grained sandstone Description. The 14-m thick ferruginized sandstone lithofacies in borehole OH-1 is light yellowish to brown, medium- to coarse-grained sandstone, with poor to moderate sorting …In the meantime, in the shallow waters bordering the intrashelf basins and the Tethys margin, several sequences were deposited composed of shallow water carbonates characterized by stromatoporoid ...

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Taebaeksan Basin. Sung Kwun Chough, in Geology and Sedimentology of the Korean Peninsula, 2013. 5.2.12 Duwibong Formation. The Duwibong Formation comprises massive packstone to grainstone, flaser wackestone to packstone, bioturbated wackestone to grainstone, oncoid/ooid grainstone, limestone-shale couplet, and dark gray massive dolostone (Table 5.3; Figure 5.11R and 5.24B).Packstone. A Packstone: grain supported by small grains (width of picture is 7mm) Under the Dunham classification (Dunham, 1962 [1]) system of limestones, a packstone is defined as a grain-supported carbonate rock that contains 1% or more mud-grade fraction. This definition has been clarified by Lokier and Al Junaibi (2016) [2] as a carbonate ... Jerry A. Blake. September 10, 2023 (74 years old) View obituary. Gary Alan Northcott. September 9, 2023 (73 years old) View obituary. Blanche Madeline Herman. September 4, 2023 (84 years old) View obituary.rudstone, packstone to grainstone, oatstone to rudstone, packstone to grainstone, rudstone, packstone to grainstone, oatstone to rudstone, dan packstone to grainstone. Daerah ini di dominasi oleh fasies packstone to grainstone. Daerah ini juga didominasi oleh sesar turun dan terdapat juga sesar graben. Gambar 5: Hasil interpretasi data GPR ...F6 peloidal packstone with reworked bioclasts and coated grains indicates deposition in a subtidal open-marine environment below the fair-weather wave base in the middle ramp. The occurrence of fragmented skeletal and non-skeletal grains indicates reworking of inner ramp sediment and deposition above the storm wave base in a middle-ramp ...Rudstone. 1. Rudstone/packstone. Grain-supported with carbonate mud matrix between grains; more than 10% of grains is > 2 mm. Skeletal grains include upper Cretaceous …Posted June 24, 2022. On 6/23/2022 at 7:34 PM, Fossildude19 said: 3rd and 4th items are Favosites corals. Last one looks like a rugose coral. The sharp item may be an orthocone cephalopod. Cropped and brightened: First large item looks like crinoidal limestone. Cropped and brightened: Expand.The dominant texture is packstone, although a peloidal, non-fossiliferous grainstone may also present in the facies. Identified fossils include disarticulated bryozoans, brachiopods, crinoids and fusulinids. Trace fossils are sparse, however the facies appears to be heavily bioturbated. Thickness of the bioclastic-packstone-to-grainstone facies ...Six general sedimentary lithofacies were distinguished in the Yingshan, Yijianfang, Tumuxiuke, and Lianglitage Formations, including (in descending order of abundance) bioclast/peloid intraclast packstone and grainstone, bioclast wackestone and mud-dominant packstone, bioclast grain-dominant packstone and grainstone, fine … ….

Download scientific diagram | The difference between grainstone oolitic facies and peloidal packstone observed at wells A and B. (A) Oolitic grainstone (core sample) with high porosity and a dark ...Grains are crinoid fragments. Under the Dunham classification (Dunham, 1962) [1] system of limestones, a grainstone is defined as a grain-supported carbonate rock that contains less than 1% mud-grade material. This definition has recently been clarified as a carbonate-dominated rock that does not contain any carbonate mud and where less than 10 ...Depositional Systems, Lithofacies, and Geochemistry of the Jurassic (Oxfordian) Smackover and Buckner Formations in Van Zandt County, Texas: A Type-Core SectionBioclastic packstone lamination passes laterally to the rudist rudstones lenses (SP2) within marly units. Interpretation. These facies correspond principally to tempestite accumulations. The benthic and planktic fauna, similar to those of facies HP, express an environment on the distal part of a reef slope, in a water depth probably greater ...Chert E . Skeletal packstone or grainstone, or limestone F. Mudstone or Claystone, or Shale ____. 1 points QUESTION 8 1. Exercise 1 Post-Lab Questions: Compare the environments listed in Table 4 (below) and the descriptions and rock names you listed in Table 6 (Data Sheet). Identify the possible environment(s) for each sample below.Radial ooids in a packstone to grainstone, compacted and with concave-convex grain contacts. Nuclei of ooids are bioclasts (red alga Komia, bryozoans and foraminifera; back-shoal, lagoon). Pennsylvanian, Asturias, N Spain, cf. Bahamonde et al. (2015, 2017)Resedimented packstone (mainly bed types Cl3 and Cl4) is more abundant in Val Bracca than in Val Taleggio and is present all across the log. Packstone facies are mainly represented by bed type Cl2, in beds from 4 to 42 cm thick. Bed type LS is present all along the log, bed type M1 is also common (82 beds, from 3 to 22 cm thick).2.1 Penjelasan gambar klasifikasi Dunham (1962) di atas : Penamaan batuan karbonat menurut Dunham terdiri atas enam, yaitu mudstone, wackstone, packstone, grainstone, boundstone, dan crystalin. Penjelasan untuk setiap penamaan pada gambar 1 dan 2 tertera di bawah ini : 1. Mudstone. Pada mudstone, kenampakan butiran kurang dari 10% karna terisi ...Silicone spoons 3-pack - Stone grey. €15,99. Add to cart. Set of 3 beautiful spoons in a nice color. Super nice and user ... Packstone, Billions of large orthocone nautiloids occur within an extremely persistent lime packstone bed of the Redwall Limestone through the Grand Canyon region, Arizona and Nevada. The platform facies of the packstone bed is 2 m thick at the top of the Whitmore Wash Member (Osagean Series of Mississippian System). Abundant nautiloids occur within the platform facies of the bed from Marble Canyon ..., A Packstone: grain supported by small grains (width of picture is 7mm) Under the Dunham classification (Dunham, 1962 [1]) system of limestones, a packstone is defined as a grain-supported carbonate rock that contains 1% or more mud-grade fraction. This definition has been clarified by Lokier and Al Junaibi (2016) [2] as a carbonate-dominated ..., Rudist wackestone/packstone: The angular rudist and coral fragments with different grain sizes (poorly sorted) are present within the micrite (Fig. 5, Fig. 6 e). Occasionally, a weak orientation fabric and the minor amounts of echinoids and benthic foraminifera have been observed in this facies. This facies is very common in the Kuh-e Siah section., rough-hewn stone. said then done. sauce-alone. slim and none. soaked to the bone. stumbling-stone. turned to stone. turns to stone. well known., 1 იან. 2018 ... Abstract:. Microporosity in carbonate reservoirs is generated by the complex interplay between depositional and diagenetic processes., Ouray-Leadville contact placed top of a 2 m-thick bed of crinoid-bryozoan-brachiopod packstone that has a Late Devonian, mid-Famennian brachiopod fauna. The overlying basal Leadville can be vugular, brecciated, have irregular bedding and algal mats. The Ouray is usually a fine-grained dolomite with sedimentary structures that suggest subtidal ..., Capillary pressure curves for a mudstone-wackestone and packstone illustrate approximate upper and lower limits for rocks from the Cheyenne Wells field. Permeable packstones exhibit sufficiently low entry pressure (and equivalent oil column height). These pressures are insufficient for low permeability mudstones, which are water saturated (Sw ..., The Upper Limestone Member is composed of gray oolitic packstone and gray mound-shaped stromatolite limestone. Stromatolites range between 40 and 80 cm in diameter ( Fig. 4 C). Both the oolitic grainstone and the stromatolite limestone are the symbolic characteristics of the Zhangxia Formation., Since discoidal orbitolinids frequency is greater than the conical type, the orbitolinid packstone is addressed to low-energy environment (Schroeder et al. 2010) which is coincided with the shallow lagoon (Raspini 2012) below fair weather base zone (Flügel 2004). The angular bioclasts represent non-transported skeletal grain which attributed ..., Bioclastic packstone and oolitic wackestone/packstone occur only on the contact between Quissamã and Outeiro Formation and are considered allochthonous facies. Glauconite-bearing wackestones and pithonelids …, probolos is known from the Bugwood wackestone buildup, Pleasant Hill wackestone buildup, Owens Branch wackestone buildup, Lily Creek wackestone buildup, Cave Springs South packstone buildup, Gross Creek packstone buildup, and 76 Falls (sheet-like packstone facies) from along the shores of Lake Cumberland in south-central Kentucky., Depositional Systems, Lithofacies, and Geochemistry of the Jurassic (Oxfordian) Smackover and Buckner Formations in Van Zandt County, Texas: A Type-Core Section, Skeletal peloidal packstone: Scan data (Fig. 7 C) reveal small interparticle and vuggy pores and in few subsamples intraparticle pores all of which are not connected at 40 μm/voxel resolution thus indicating the need for higher resolution scanning to resolve the pores. CT imaging at 1 μm resolution shows interparticle and vuggy pores in the ..., By studying the texture of packstone and oolitic limestone, crystal size, crystal shape, extent of dolomite, and the pore filling characteristics, we confirmed that the genesis of burial dolomite was characterized by two diagenetic stages in the Sanshanzi Formation: an early and a late stage. 5.1.2.1., a-c Bioclast, lepidocyclinidae wackestone-packstone facies. The large and discoidal tests of the foraminifera point to a deep low light, turbid environment. d corallinacea, nummulitidae, lepidocyclinidae wackestone-packstone facies characterized by thin and elongated foraminifera tests in a packstone matrix. e Platy coral colony., In thin section, the packstone matrix is an interlocking network of equant calcite crystals and floating circular crystal aggregates (peloids) coated with a rim of variably thick micritic cement ..., Developed on the Tick Studio loom, Wool Fleck modernizes the plain weave structure, transforming it with vivid color combinations., Ouhla attention : - un conglomérat est une roche détritique, résultant de l'érosion mécanique de reliefs terrestres ; c'est un ensemble de bouts de roches reliés par un ciment chimique. - un grainstone, un packstone et un wackestone désignent tous des roches résultant d'une sédimentation organique, typiquement au fond des océans : ce ..., Our community website was developed to serve as an informative resource for both our neighborhood and our local community. Please feel free to contact us with your comments and suggestions. News. Please login to view this area. Upcoming Events. Please login to view this area. Opinion. Please login to view this area. Visit Parkstone., The predominant microfacies of the Asmari Formation at Dehdez area are: (1) globigerinid bioclastic wackestone to packstone, (2) globigerinid laminated wackestone, (3) coral and coralline algal boundstone, (4) bioclastic-lithoclastic wackestone to packstone, (5) foraminifera bioclastic wackestone to packstone, (6) foraminifera grainstone, (7) peloid wackestone to packstone, and (8) peloid ..., INTRODUCTION Background Geologic Setting CARBONATE PETROGRAPHY Platy Algal Wackestone/Packstone Fossiliferous Shale Bioclastic Packstone Algal Breccia ..., Packstone Grain-supported; carbonate mud matrix in interparticle space. Grains are oncoids made of coralline red algae (rhodoids) and skeletal fragments (serpulid worm tubes, bivalves, ostracods)., Litologi penyusun daerah penelitian berupa batugamping wackstone dan packstone. Terdapat dua jenis endapan besi yaitu bijih besi primer dan bijih besi sekunder. Bijih besi primer ditandai oleh ..., The overlying Bryozoan Limestone, dominated by packstone and planar laminated rudstone with bryozoans, gastropods, echinoderms/echinoid spines, and molluscs, indicates deposition within the lower intertidal environment with moderately high-energy conditions. Abundant meniscus cement and biomolds suggest meteoric vadose diagenetic modification ..., Silver Cross Dune Pushchair with Ultimate Pack Stone ... Dune. the new contemporary and compact urban travel system that proves there's no need to compromise when ..., This microfacies has a grainstone to packstone texture primarily composed of foraminifera other than fusulinids along with few fusulinids, brachiopods, bivalves and micritized grains (Fig. 4 B). The diversified assemblage of foraminifera and low matrix content indicate a moderate-energy open-marine environment. The initial inter- and intra ..., Euhedral dolomite crystals are present within the micritic sediment; f Dolomitized wackestone-packstone with cyanobacteria nodules and black pebble type intrasclasts; g Fenestral wackestone ..., The > 2 mm allochems in floatstones float in grainstone/packstone matrix and not in mudstone/wackestone matrix. Although it has been mentioned in the literature that packstones might be originally deposited as grainstones (e.g. Dunham, 1962; Wright, 1992; Adams and MacKenzie, 1998), there are no adequate discussions or petrographic ..., Resedimented packstone (mainly bed types Cl3 and Cl4) is more abundant in Val Bracca than in Val Taleggio and is present all across the log. Packstone facies are mainly represented by bed type Cl2, in beds from 4 to 42 cm thick. Bed type LS is present all along the log, bed type M1 is also common (82 beds, from 3 to 22 cm thick)., SEM images of limestone samples with wackestone and wackestone-packstone showed mottled shapes, while SEM image of arenaceous proto-dolomite revealed tightly bounded structures of dolomite grains. 5 Discussion. The three (3) observed microfacies are identified on the basis of field and laboratory studies, namely: Wackestone, bioclastic ..., Bioclastic packstone. The main components of this microfacies are represented by fragments of bivalves, green algae, coral, benthic foraminifers, especially fragments of orbitolinids, echinoids, and spicules of sponge (Fig. 5f). Some pores of bioclasts are filled with a micritic matrix. Miliolids-bearing packstone, Carbonate Factory Response and Recovery after Ocean Anoxic Event 1a, Pearsall Formation, Central Texas by Esben Skjold Pedersen Thesis Presented to the Faculty of the Graduate School of, Fig. E: Photomicrograph showing Peloidal packstone microfacies having sponge dendrites (SD) (Sample NGS1) Fig. F: Photomicrograph showing Peloidal packstone microfacies having Peloids (POL) Sample ...