bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dobys Bluff tongue of the Kosciusko Formation and the Archusa Marl Member of the Cook Mountain Formation at Dobys Bluff on the Chickasawhay River, Clarke County, Mississippi
Authors: Dockery David T. 
Published: November 2007

Abstract
The Dobys Bluff Tongue of the Kosciusko Formation and the Archusa Marl Member of the Cook Mountain Formation are exposed on the east bank of the Chickasawhay River just below a large bend in the river south of Quitman, Mississippi, at the center of the north line of the NW¼SW½NW¼, Sec.18, T.2N., R.16E., Clarke County, Quitman 7½-minute quadrangle (Fig. 1). The exposure is accessible by boat or taking Mississippi 514 east from Quitman, turning south 0.75 mi (1.3 km) outside of the city limits onto a paved road leading to the Archusa Creek Water Park camp ground, continuing south past the camp ground and past Shiloh Church to a dirt road in Sec. 18 that veers southwest, and taking this road west along the ridgetop (avoiding logging trails leading in other directions) to a high bluff on the Chickasawhay River.
Shelf marls and chalks in the Marine Section of the Upper Cretaceus
Authors: Russell Ernest E. 
Published: November 2007

Abstract
Shelf marls and chalks in the marine section of the Upper Cretaceus of Mississippi are exposed west of Tombigbee River in western Lowndes County and eastern Oktibbeha County, eastcentral Mississippi. An additional optional stop is located in northern Noxubee County (Figure 1). The four stops require approximately 40 mi (66.7 km) of driving mostly on gravel roads. The first two outcrops require short walks (5 to 10 minutes). The outcrops are steep and they are slick when wet.
The Cockfield (Claiborne Group), Moodys Branch and Yazoo (Jackson Group) Formations at the Riverside Park locality in Jackson, Mississippi
Authors: Dockery David T. 
Published: November 2007

Abstract
The Riverside Park locality is a steep-sided ravine along the eastern side of a golf course in northeast Jackson, Mississippi, in the NE¼ NW¼ NW¼, sec. 36, T. 6 N., R. 1 E., Hinds County, Jackson 7½-minute quadrangle (Fig. 1). It is readily accessible by taking the Lakeland Dr. east exit off of I-55 at Jackson, then turning south on Highland Dr. at the first traffic light, and continuing to the intersection with Riverside Dr. and Riverside Park Circle. At this intersection take Riverside Park Circle east, and after the circle turns north, stop in the parking lot on the right. This lot is next to the entrance of a nature trail and uphill from a golf course. The locality can be reached by walking east-northeast for a short distance over a part of the golf course to a ravine below a small pond.
The Vicksburg Group at the Haynes Bluff Quarry
Authors: Dockery David T. 
Published: November 2007

Abstract
The Vicksburg Group is exposed in a rock quarry on east side of Mississippi 3 north of Redwood, Mississippi, in the NW¼, sec. 26, T. 18 N., R. 4 E., Warren County, Onward 15-minute Quadrangle (Fig. 1). Readily accessible by taking 1-20 to the U.S. 61 bypass east of Vicksburg, traveling north on U.S. 61 bypass to Redwood, then continuing north on Mississippi 3 to dirt road on right opposite the office building of the inactive Mississippi Valley Portland Cement Company, and then following the dirt road by foot to the northernmost of two inactive quarries.
The Florida Parishes of southeastern Louisiana
Authors: Autin Whitney J. , Alford J. J. , Miller Bobby J. , Self Robert P. 
Published: November 2007

Abstract
The Florida Parishes of southeastern Louisiana (Fig. 1) are bounded on the west by the Mississippi River, on the east by the Pearl River, on the north by the Louisiana-Mississippi state line, and on the south by the Mississippi River deltaic plain. Principal cities include Baton Rouge and New Orleans.
Red River Gorge Geological Area (Daniel Boone National Forest) and Natural Bridge State Park, east-central Kentucky
Authors: Dever Garland R. , Barron Lance S. 
Published: November 2007

Abstract
The Red River Gorge Geological Area and Natural Bridge State Park are located 32.8 and 40 mi (55 and 67 km) southeast of I-64 on Mountain Parkway and Kentucky 11 and 715; Menifee, Powell and Wolfe Counties; Slade and Pomeroyton 7½-minute Quadrangles (Fig. 1).
Physiography of Louisiana Salt Domes (The Five Islands)
Authors: Kupfer Donald H. 
Published: November 2007

Abstract
The Five Islands are a line of topographic mounds parallel to and southwest of U.S. Highway 90 between New Iberia and Morgan City, Louisiana (Fig. 1). They are 25 to 60 mi (42 to 100 km) from I-10 at Lafayette, Louisiana. Belle Isle is only accessible by boat: the others are 5 to 18 mi (8.3 to 30 km) by rural roads, from U.S. 90. All are privately owned, and the public is no longer admitted to any of the associated salt mines.
Selected depositional environments of the Mississippi River deltaic plain
Authors: Roberts Harry H. 
Published: November 2007

Abstract
Depositional environments of the Mississippi River deltaic plain can be studied in a series of exposures in the Barataria Basin (upper deltaic plain) and in the Balize delta lobe (lower deltaic plain). Stops 1 and 2 are in Barataria Basin, which is an interdistributary basin defined by alluvial ridges of the modern Mississippi River on the east and Bayou Lafourche on the west (Fig. 1 ).
Stops designated for the lower delta are accessible only by boats suitable for safely navigating the river from Venice to the mouth of South Pass.
Pennsylvanian-age distributary-mouth bar in the Breathitt Formation of eastern Kentucky
Authors: Chesnut Donald R. , Cobb James C. 
Published: November 2007

Abstract
A Pennsylvanian-age distributary-mouth bar in the Breathitt Formation can be seen at two localities in Knott County, Kentucky. The northwest locality is on Kentucky 80,500 ft (152 m) west of the intersection of Kentucky 80 and the Hindman access road (“Hindman Spur”) (Fig. 1). This stop is located in Carter coordinate section 16-K-79, in the northwestern comer of the Hindman 7½-minute Quadrangle. The multilane highway offers easy accessibility by vehicle, and buses may park along the shoulder of Kentucky 80, between the road cut and the intersection of the Hindman access road.
The southeast locality is a road cut located on the Hindman access road about 0.5 mi (0.8 km) south of the intersection of Kentucky 80 and the access road. This stop is in the northwestern comer of the Hindman 7½-minute Quadrangle in Carter coordinate section 25-K-79. Buses may park in the large flat area on the southwestern side of the road just west of the road cut.
Pennsylvanian System stratotype sections, West Virginia
Authors: Englund Kenneth J. , Arndt Harold H. , Schweinfurth Stanley P. , Gillespie William H. 
Published: November 2007

Abstract
The establishment of a standard reference section for the Pennsylvanian System in the Appalachian basin was necessitated by inconsistencies and variations in the application and correlation of the loosely defined Lower, Middle, and Upper Pennsylvanian Series. To provide rock-representative definitions for these units, the Pennsylvanian System stratotype study was undertaken in consultation with interested geologists and paleontologists from State geological surveys, U.S. Geological Survey, academia, and industry. An essential criterion for the designation of the stratotype section was the selection of the most complete and continuous sequence of Pennsylvanian strata that are also conformable with underlying and overlying systems. This requirement was only met in West Virginia where Pennsylvanian rocksextend from the Mississippian strata of the Pocahontas coal field to the Permian strata of the Dunkard basin, a location that follows the recommendation of the Pennsylvanian Subcommittee of the National Research Committee on Stratigraphy that the best standard section for Pennsylvanian rocks in the Appalachian basin would be in West Virginia (Moore and others, 1944, p. 665).
The Pennsylvanian System is defined by a composite stratotype consisting of 14 outcrop sections extending from the base to the top of the system over a distance of 100 mi (160 km). Fieldguide site 14 includes a description of strata in the Lower Pennsylvanian Series at three successive sites; A, A-B, and B-C in south-central West Virginia (Fig. 1). Field guide site 13 includes descriptions of strata in the Middle and Upper Pennsylvanian Series. Corroborative investigations include (1) geologic mapping of areas between
Greenland Gap, Grant County, West Virginia
Authors: Avary Katharine Lee 
Published: November 2007

Abstract
Greenland Gap is located in Grant County, West Virginia (Fig. 1), and are on the Greenland Gap and Medley 7½-minute Quadrangles (Fig. 2). The exposures are along West Virginia 42 and 93, west of Scherr, and along Grant County Rt. 1 (Greenland Road) and Grant County Rt. 3/3 (Greenland Gap Road), east of Scherr.
The biostratigraphical and palaeogeographical framework of the earliest diversification of tetrapods (Late Devonian)
Authors: Blieck A. , Clement G. , Blom H. , Lelievre H. , Luksevics E. , Streel M. , Thorez J. , Young G. C. 
Published: November 2007

Abstract
The earliest diversification of tetrapods is dated as Late Devonian based on 10 localities worldwide that have yielded bone remains. At least 18 different species are known from these localities. Their ages span the ‘middle’–late Frasnian to latest Famennian time interval, with three localities in the Frasnian, one at the F/F transition (though this one is not securely dated) and six in the Famennian. These localities encompass a wide variety of environments, from true marine conditions of the nearshore neritic province, to fluvial or lacustrine conditions. However, it does not seem possible to characterize a freshwater assemblage in the Upper Old Red Sandstone based upon vertebrates. Most of the tetrapod-bearing localities (8 of 10) were situated in the eastern part of Laurussia (=Euramerica), one in North China and one in eastern Gondwana (Australia), on a pre-Pangean configuration of the Earth, when most oceanic domains, except Palaeotethys and Panthalassa, had closed.
Brachiopod faunal changes across the Devonian–Carboniferous boundary in NW Sahara (Morocco, Algeria)
Authors: Brice D. , Legrand-Blain M. , Nicollin J.-P. 
Published: November 2007

Abstract
Based on previous systematic studies of productid, rhynchonellid and spiriferid brachiopods from NW Sahara (Morocco and Algeria), we recognize three successive faunas near the Devonian–Carboniferous boundary. A ‘Lower Fauna’, late Famennian in age [IV(?)-V and lower VI(?) Zones], and an ‘Upper Fauna’, early Tournaisian in age, are present in southern Morocco (Assa, Akka, Zemoul areas) and in Algeria, Timimoun area. A third ‘Intermediate Fauna’, with few taxa, and differing according to the areas, is identified in southern Morocco. Northwards, in Tafilalt–Ma'der basins, rare brachiopods, found above a ‘Hangenberg Black Shale’ equivalent, are in spite of taxonomic differences related to the ‘Upper Fauna’. This important renewal of faunas could be in relation to the main lithological variations.
Neritic–pelagic correlation in the Lower and basal Middle Devonian of the Dra Valley (Southern Anti-Atlas, Moroccan Pre-Sahara)
Authors: Jansen U. , Lazreq N. , Plodowski G. , Schemm-Gregory M. , Schindler E. , Weddige K. 
Published: November 2007

Abstract
Marine Lower Devonian successions are widely exposed in the Dra Valley (Southern Anti-Atlas, Moroccan Pre-Sahara). Resulting from new studies, especially on brachiopods, conodonts, and dacryoconarid tentaculitids, the chronostratigraphic assignments of the Lower Devonian formations are revised. Thanks to lateral and vertical facies variations, it is possible to correlate pelagic and neritic successions and corresponding biostratigraphies. Pelagic conodont, dacryoconarid and goniatite faunas allow correlations and dating in the sense of the Bohemian and global chronostratigraphies, whereas units of the traditional Rhenish subdivision can be identified by means of neritic brachiopods.
Persistent depositional sequences and bioevents in the Eifelian (early Middle Devonian) of eastern Laurentia: North American evidence of the Kačák Events?
Authors: DeSantis M. K. , Brett C. E. , Ver Straeten C. A. 
Published: November 2007

Abstract

The late Eifelian–earliest Givetian interval (Middle Devonian) represents a time of significant faunal turnover in the eastern Laurentia and globally. A synthesis of biostratigraphic, K-bentonite and sequence stratigraphic data indicates that physical and biotic events in the Appalachian foreland basin sections in New York are coeval with the predominantly carbonate platform sections of southern Ontario and Ohio. The upper Eifelian (
australis
to
ensensis
conodont zones) Marcellus Subgroup in New York comprises two large-scale (3rd-order) composite depositional sequences dominated by black shale, which are here assigned to the Union Springs and Oatka Creek Formations. The succession includes portions of three distinctive benthic faunas or ecological–evolutionary sub-units (EESUs): ‘Onondaga’, ‘Stony Hollow’ and ‘Hamilton’. In the northern Appalachian Basin in New York, the boundaries of these bioevents show evidence of abrupt, widespread extinctions, immigration and ecological restructuring. In the Niagara Peninsula of Ontario and from central to northern Ohio, the same sequence stratigraphic pattern and bioevents are recognized in coeval, carbonate-dominated facies.

The correlations underscore a relatively simple pattern of two major sequences and four subsequences that can be recognized throughout much of eastern Laurentia. Moreover, the biotic changes appear to be synchronous across the foreland basin and adjacent cratonic platform. However, the degree of change differs substantially, being less pronounced in carbonatedominated mid-continent sections. Finally, we make the case that the two major faunal changes align with regional sequence stratigraphic patterns as well as with the global Kačák bioevents.
Recognizing the Kačák Event in the Devonian terrestrial environment and its implications for understanding land–sea interactions
Authors: Marshall J. E. A. , Astin T. R. , Brown J. F. , Mark-Kurik E. , Lazauskiene J. 
Published: November 2007

Abstract

The Kačák Event is a late Eifelian (Mid-Devonian) episode of marine dysoxia/anoxia with associated extinctions. It has been widely recognized in the shelf seas that surrounded the Old Red Sandstone continent. It was contemporary with the lacustrine Orcadian Basin in Scotland. This basin contains the distinctive Achanarras lake horizon that contains a rich and diverse fish fauna. The Achanarras lake was wide and deep and would have been filled by rainfall from a monsoon system at an insolation maximum. Faunal elements within the lake are in common with the Kernavė Member in Estonia and this level can be conodont dated as late Eifelian
eiflius
or
ensensis
Zone. Therefore the group of lacustrine flooding climatic events that occur at and above the Achanarras level can be correlated with the marine Kačák Event (
sensu lato
) and both can be regarded as having a common climatic cause and driven by an insolation maximum. A reconstruction of the Orcadian Basin drainage system and a water balance model based on the calcium flux within the lake shows that a very significant volume of water would have been seasonally discharged to the Rheic Ocean and would have caused an additional environmental effect.
A nonstop mutation in the factor (F)X gene of a severely haemorrhagic patient with complete absence of coagulation FX
Authors: Channell Cynthia , Crenshaw Valerie , Fernstrom Karl , Khachidze Manana , Duncan Alexander , Fuchs Sebastien , Ameri Afshin , Machiah Deepa , Tran Thuy , Howard Tom 
Published: November 2007

SummaryWe identified a previously unknown mutation by sequencing the factor (F)X gene in a severely haemorrhagic 14-year-old maleAfrican-American individual with undetectable plasma FX-activity and -antigen levels. This mutation, called F10-Augusta, was homozygote and is a combination of an 8bp insertion in flanking 3’-genomic-DNA and a 5bp terminal exon-8 deletion involving codons 437 and 438. Sequencing of RT-PCR and 3’-RACE products showed that the F10-Augusta transcript is normally processed but lacks an in-frame stop codon. An allele specific 3’-RACE-based RFLP assay demonstrated that the steady-state concentration of the mutant transcript was markedly lower than that of the wild-type message in total-RNA samples from the patient’s unaffected heterozygous parents. The recently discovered nonstop decay mechanism, a component pathway of the mRNA surveillance system, is a possible explanation for the reduced concentration of the mutant FX transcript. This is the first report implying such a mechanism in the pathogenesis of inherited bleeding disorders.
Enhanced platelet aggregation and activation under conditions of hypothermia
Authors: Xavier Ruben , White Ann , Fox Susan , Wilcox Robert , Heptinstall Stan 
Published: November 2007

SummaryThe effects on platelet function of temperatures attained during hypothermia used in cardiac surgery are controversial. Here we have performed studies on platelet aggregation in whole blood and platelet-rich plasma after stimulation with a range of concentrations of ADP, TRAP, U46619 and PAF at both 28°C and 37°C. Spontaneous aggregation was also measured after addition of saline alone. In citrated blood, spontaneous aggregation was markedly enhanced at 28°C compared with 37°C. Aggregation induced by ADP was also enhanced. Similar results were obtained in hirudinised blood. There was no spontaneous aggregation in PRP but ADP-induced aggregation was enhanced at 28°C. The P2Y12 antagonist AR-C69931 inhibited all spontaneous aggregation at 28°C and reduced all ADP-induced aggregation responses to small, reversible responses. Aspirin had no effect. Aggregation was also enhanced at 28°C compared with 37°C with low but not high concentrations of TRAP and U46619. PAF-induced aggregation was maximal at all concentrations when measured at 28°C, but reversal of aggregation was seen at 37°C. Baseline levels of platelet CD62P and CD63 were significantly enhanced at 28°C compared with 37°C. Expression was significantly increased at 28°C after stimulation with ADP, PAF and TRAP but not after stimulation with U46619. Overall, our results demonstrate an enhancement of platelet function at 28°C compared with 37°C, particularly in the presence of ADP.
Disulfide bond disruption by a β3-Cys549Arg mutation in six Jordanian families with Glanzmann thrombasthenia causes diminished production of constitutively active αIIbβ3
Authors: Peretz Hava , Landau Meytal , Coller Barry , Awidi Abdalla , Mor-Cohen Ronit , Rosenberg Nurit , Seligsohn Uri 
Published: November 2007

SummaryαIIbβ3 integrin mediates platelet aggregation following its activation. Its absence or dysfunction causes Glanzmann thrombasthenia (GT), an inherited bleeding disorder that is rare worldwide but relatively frequent in several populations with high rates of consanguinity, including Arabs in Israel and Jordan. Cysteine residues in the β3 epidermal growth factor (EGF) domains are involved in αIIbβ3 formation and activation. In this study we present a novel Cys549Arg mutation in β3 identified in six Jordanian families, which in the homozygous state is manifested by severe GT. The mutation is located in EGF-3 of β3 predicting disruption of a conserved disulfide bond between Cys549 and Cys558. Haplotype analysis disclosed a common founder whose age estimate was 120–150 years. Flow cytometry revealed 1–14% of normal αIIbβ3 expression at the patients' platelet surface. The Cys549Arg or artificial Cys549Ser mutations were introduced into a β3 expression vector. Co-transfection of baby hamster kidney cells with normal or mutant β3 along with normal αIIb demonstrated reduced surface expression of αIIbβ3 by both mutants. The mutants were constitutively active as demonstrated by 20-fold increased binding of the ligand-mimetic antibody PAC-1. Immunoblotting and immunoprecipitation experiments showed reduced β3 and αIIbβ3 expression and a higher than normal ratio of pro-αIIb to mature αIIb. Immunofluorescence experiments showed that β3 and αIIbβ3 were mostly retained in the endoplasmic reticulum. In conclusion, the novel ancestral mutation found in a cluster of Jordanian GT patients disrupts a conserved Cys549-Cys558 bond which results in reduced production of constitutively active αIIbβ3.
The significance of vasodilator-stimulated phosphoprotein for risk stratification of stent thrombosis
Authors: Stellbrink Katja , de Taeye Anita , Müller Robert , Kiefer Paul , Yagmur Eray , Weber Christian , Kelm Malte , Hoffmann Rainer , Blindt Rüdiger 
Published: November 2007

SummaryLow-response to the P2Y12 adenosine diphosphate (ADP)-receptor antagonist clopidogrel was suggested to correspond to a higher incidence of stent thrombosis (ST). This prospective observational study assessed the capability of two platelet function assays, e.g. direct measurement of the phosphorylation status of vasodilator-stimulated phosphoprotein (VASP) and ADP-induced platelet aggregation for definition of the individual risk to develop ST. Ninety-nine patients with an elevated high risk to develop ST were enrolled. All patients received a dual antiplatelet therapy consisting of 100 mg aspirin and 75 mg clopidogrel during an observation period of six months. Flow cytometry of VASP phosphorylation and densitometrically-determined measurement of ADP-induced platelet aggregation was performed 72–96 hours after stent implantation. These data were related to angiographically confirmed ST. Nine patients suffered from angiographically confirmed ST (9.1%). The meanVASP-platelet reactivity indices (VASP-PRI) and values for ADP-induced platelet aggregation in the ST group were significantly higher (60.8 ± 13.0 and 60.9 ± 13.1, respectively) compared to patients without ST (41.3 ± 14.0 and 50.8 ± 14.4, P<0.001 vs. 0.048, respectively). There was a fair correlation between both methods using non-linear regression analysis (r=0.332). In a multivariate analysis, VASP was the only independent predictor of ST and was superior to previously identified angiographic parameters. Receiver- operator characteristic (ROC) curve analysis revealed a cut-off value for VASP-PRI of <48% to be associated with low risk of ST. In conclusion, determination ofVASP phosphorylation is superior to conventional platelet aggregometry and angiographic parameters for assessing the risk of ST. Patients with a VASP-PRI >48% seem to have a significantly increased risk.