Excavations at Miltown of Clava, Inverness-shire

1993 ◽  
Vol 18 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Niall M Sharples
Keyword(s):  
Highland Region ◽  
Large Spread

Summary This report presents the results of the excavation of a cairn at Miltown of Clava, Inverness District, Highland Region. The excavations were superficial but revealed that underneath a large spread of more recent field clearance was a prehistoric cairn probably of Clava type. The cairn was circular with an estimated diameter of 12m. To the SW of the cairn is a large standing stone and lying on the cairn was a large slab decorated with small cup marks. The presence of both these features is characteristic of Clava type cairns.

Field and isotopic evidence for a c. 750 Ma tectonothermal event in Moine rocks in the Central Highland region of the Scottish Caledonides

1983 ◽  
Vol 73 (3) ◽  
pp. 119-134 ◽  
Author(s):  
M. A. J. Piasecki ◽  
O. van Breemen
Keyword(s):  
Crustal Rocks ◽  
Highland Region ◽  
Ductile Shearing ◽  
Central Highland ◽  
Isotopic Studies ◽  
Previous Hypothesis ◽  
Moine Rocks ◽  
Early Palaeozoic ◽  
Similar Vein ◽  
Tectonothermal Event

ABSTRACTEvidence is presented for a late Proterozoic, tectonothermal event which affected the rocks of the Moine assemblage in the Central Highland region of the Scottish Caledonides c. 750 Ma ago. This is about 200 Ma before the early Palaeozoic Grampian orogeny, whose effects are superimposed on the Moine rocks as well as dominating the tectonism in the Dalradian Supergroup.Field and isotopic studies are integrated in zones of ductile thrusting (sliding) which are typified by belts of tectonic schists with related swarms of quartz and muscovite-bearing pegmatite veins. Of particular significance is a ductile thrust (the Grampian slide) which separates deeper crustal rocks (the Central Highland division), interpreted as showing the imprint of the Grenville orogeny, from shallower rocks (the Grampian division) representing a supracrustal assemblage formed between the Grenville and the c. 750 Ma events.The Grampian slide is the structurally highest member of a system of related, previously unrecorded slides affecting the Central Highland division. New structural, petrographic and Rb-Sr isotopic data, obtained largely from a recently recognised inlier of the Central Highland division at Laggan, bear out that the quartz and pegmatite veins are segregations formed during ductile shearing under amphibolite facies conditions. Muscovites from these veins yield ages between 780 and 730 Ma, and a regression analysis of tectonic schists and the muscovites gives an age of 740 ± 40 Ma. These data substantiate our previous hypothesis that the deeper-seated Moine rocks were affected by a distinct orogenic event at 750 ± 30 Ma.In the Northern Highlands, similar vein swarms are related to the Sgurr Beag slide and to belts of previously unrecorded tectonic schists in the Glenfinnan division of the Moine assemblage. A new, 755 ± 8 Ma age obtained from such a tectonic schist at Kinloch Hourn, combined with previous, similar age data from lensoid pegmatites, imply that the c. 750 Ma event may have also affected the Morar and Glenfinnan divisions.

Metastudie industrieller Energieflexibilität*/Meta-analysis of industrial energy flexibility - An approach for optimizing the identification of energy flexibility potentials

2017 ◽  
Vol 107 (09) ◽  
pp. 610-616
Author(s):  
S. Eisenhauer ◽  
F. Zimmermann ◽  
M. Reichart ◽  
P. Accordi ◽  
A. Prof. Sauer
Keyword(s):  
Production System ◽  
Meta Analysis ◽  
German Industry ◽  
Wird Eine ◽  
Bottom Up ◽  
Systematic Analysis ◽  
Industry Level ◽  
Large Spread ◽  
Industrial Energy ◽  
The Individual

Bisherige Studien über energetische Flexibilität in der deutschen Industrie weisen das vorhandene Flexibilitätspotenzial mit hoher Streuung aus. Diese Arbeit analysiert relevante Studien in Bezug auf deren Annahmen und Vorgehensweise. Aufbauend auf den bisherigen Vorgehensweisen wird ein Ansatz zur Erhebung der Daten im Produktionssystem vorgestellt. Des Weiteren wird eine Methode zur Aggregation der Daten hoch bis auf Branchenebene entwickelt.   Previous studies on the energetic flexibility of German industry show potentials with a large spread. Therefore, in this article, a systematic analysis of the individual studies and an evaluation of the indicated flexibility potentials are carried out. Based on the existing methods, a bottom-up approach for collecting the data in the production system and the aggregation up to the industry level is presented.

scholarly journals Uranium-series isotopes from Eemian lake deposits, Hollerup, Denmark

1998 ◽  
Vol 44 ◽  
pp. 173-179
Author(s):  
C. Israelson ◽  
S. Bjorck ◽  
N. Noe Nygaard ◽  
C. J. Hawkesworth
Keyword(s):  
Ground Water ◽  
Lake Sediments ◽  
Sedimentary Facies ◽  
Organic Content ◽  
Time Interval ◽  
Decay Products ◽  
Large Spread ◽  
Isotope Study ◽  
Lake Deposits ◽  
High Organic Content

We report the results of a U-series isotope study on Eemian lake sediments from Hollerup, western Denmark. The purpose is to examine the possibility of dating these, and similar, sediments with the 238U-23"h method. Two sedimentary facies were studied; carbonate-present, and virtually carbonate-free but organic-rich sediments. All carbonate-present sediments (5-95%) have (230ThP38U) values higher than unity and relatively radiogenic (23"W232Th) values between 2 and 6.5, indicating postdeposition removal of U, probably by percolation of ground water. Carbonate-free sediments, but with high organic content (40-60%) had (230Th/238U) values lower than 1 and 'model ages' between 89 and 199 ky. The large spread in ages and variation in U content for these sediment samples that were deposited over a much shorter time interval, indicate a complex postdepositional migration pattern of U, probably involving several episodes of leaching and absorption of U from ground water. Our results suggest that lake sediments, such as those found in Hollerup, are vulnerable to mobilization of U and its decay products and care should be taken when interpreting U-series disequilibrium data from such sediments. Future studies will concentrate on sediments that have been more deeply buried andor are less compacted and sealed from percolation of oxidized groundwater.

scholarly journals Generation of microplastics from the opening and closing of disposable plastic water bottles

2021 ◽  
Author(s):  
Tvisha Singh
Keyword(s):  
Particle Density ◽  
Nile Red ◽  
Bottled Water ◽  
Particle Generation ◽  
Large Spread ◽  
Total Particle ◽  
Contamination Levels ◽  
Opening And Closing ◽  
Red Dye ◽  
Disposable Plastic

Abstract There has recently been a significant increase in interest regarding the prevalence of microplastics in bottled water. Previous studies have shown that the composition of many of the microplastics in bottled water is consistent with the materials of the bottle and bottle cap. The focus of this study is to quantify microplastic particle generation from the cap and bottle interaction during open and close cycles. Nile Red dye was used for the detection of microplastics >4.7 μm in size. Microplastic contamination levels in the water were found to increase as the bottle cap is opened and closed repeatedly. The rate of generation of particles with bottle opening and closing cycles (553 ± 202 microplastics/L/cycle) is adequate to account for the total particle density in the water. This clearly demonstrates that the abrasion between the bottle cap and bottleneck is the dominant mechanism for the generation of microplastic contamination detected in bottled water. A large spread between the maximum and minimum levels of microplastic contamination for bottles from the same lot, regardless of the number of times the cap is opened and closed, suggests that mechanical tolerances in the manufacturing of bottles and caps might play an important role in microplastic generation.

Conferences in British Nineteenth-Century Coastal Shipping

2009 ◽  
pp. 77-90
Author(s):  
John Armstrong
Keyword(s):  
Nineteenth Century ◽  
United Kingdom ◽  
Shipping Industry ◽  
Common Features ◽  
The United Kingdom ◽  
Coastal Shipping ◽  
Regulate Competition ◽  
Large Spread ◽  
The Common

This chapter examines a substantial number of British shipping conferences in the nineteenth century in order to determine their ability to regulate competition across the shipping trade. It identifies and analyses the common features of shipping conferences; the presence of conferences outside of Britain - particularly in China; the early shipping conferences, including the Glasgow-Liverpool conference; and the evidence of large-spread conferences across the United Kingdom. It discovers that coastal shipping was as involved in shipping conferences as the rest of the shipping industry, and that collaboration between firms existed even within the heightened competitive atmosphere.

Enhance Data Security and Privacy in Cloud

2020 ◽  
pp. 264-279
Author(s):  
Hicham Amellal ◽  
Abdelmajid Meslouhi ◽  
Abderahim El Allati ◽  
Annas El Haddadi
Keyword(s):  
Information Technology ◽  
Cloud Computing ◽  
Data Security ◽  
Security And Privacy ◽  
The Internet ◽  
Communications Networks ◽  
Private Key ◽  
Encrypt Data ◽  
Large Spread ◽  
Quantum Approach

With the advancement of communication and information technology, the internet has become used as a platform for computing and not only a way of communications networks. Accordingly, the large spread of cloud computing led to the emergence of different privacy implications and data security complexities. In order to enhance data security in the cloud, the authors propose in this chapter the use of an encryption box, which includes different cryptosystems. In fact, this step gives the user the opportunities to encrypt data with an unknown algorithm and makes a private key before the storage of data in the host company servers. Moreover, to manage the encryption database, the authors propose a quantum approach in search based on Grover's algorithm.

Medicinal plants and their traditional uses in the highland region of Bordj Bou Arreridj (Northeast Algeria)

2019 ◽  
Vol 16 ◽  
pp. 100262 ◽  
Author(s):  
Mohamed Djamel Miara ◽  
Hamdi Bendif ◽  
Khellaf Rebbas ◽  
Bounar Rabah ◽  
Mohammed Ait Hammou ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Traditional Uses ◽  
Highland Region

Soyedina Ricker, 1952 (Plecoptera: Nemouridae) in the eastern Nearctic: review of species concepts, proposed morphology-based species groups, and description of a new species from North Carolina

Zootaxa ◽  
2019 ◽  
Vol 4658 (2) ◽  
pp. 223-250
Author(s):  
SCOTT A. GRUBBS ◽  
RICHARD W. BAUMANN
Keyword(s):  
North Carolina ◽  
New Species ◽  
Species Concepts ◽  
Distribution Map ◽  
Highland Region ◽  
Southern Appalachian ◽  
Dichotomous Key ◽  
Western North Carolina ◽  
Species Groups ◽  
A New Species

The eastern Nearctic species of the genus Soyedina Ricker, 1952 (Plecoptera: Nemouridae) are reviewed. Two morphology-based species groups are proposed based on epiproct characteristics. Soyedina sheldoni sp. nov. is described from the southern Appalachian Highland region of western North Carolina. A distribution map and a dichotomous key to all nine Nearctic species are provided.

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