Lauge Koch: Pioneer Geo-Explorer of Greenland's Far North

1991 ◽  
Vol 10 (2) ◽  
pp. 130-153
Author(s):  
Peter Dawes
Keyword(s):  
East Coast ◽  
Home Country ◽  
Geological Mapping ◽  
Mountainous Terrain ◽  
Fold Belt ◽  
Baffin Bay ◽  
Far North ◽  
Continuous Work ◽  
Harsh Conditions ◽  
Made In

Lauge Koch, Danish explorer, geologist, and cartographer, became a legendary figure in his lifetime. He was also a very controversial one. For 50 years he was concerned with Greenland affairs, spending 33 summers and 6 winters in the far north, making a profound impact on Greenland geo-science. He was a pioneer in regional map-making and in the use of aircraft in photogrammetric surveys. Koch was a colourful personality of international fame, a man of boundless energy, who-strangely as it may seem-perhaps made in his home country as many enemies as he had admirers.Internationally, he is best known for his continuous work along the east coast between 1926 and 1958 as initiator and leader of expeditions that mapped the vast mountainous terrain of the East Greenland Caledonian fold belt. The results represent an outstanding co-ordinated effort of many international scientists. In contrast, Koch's earlier contribution, the topographical and geological mapping of northern Greenland from Baffin Bay to the Greenland Sea, is much more the work of one man. The results, accomplished primarily by dog-sledge and under particularly harsh conditions, are a mammoth achievement of regional map making unsurpassed in polar history, and one initiated long before the national commitment for regional mapping had taken shape.

Vegetation on technogenic habitats in the far-north taiga and south forest-tundra of the European North-East of Russia. Alliance Chamerio angustifolii–Matricarion hookeri A. Ishbirdin et al. 1996

2019 ◽  
pp. 77-94
Author(s):  
I. A. Likhanova ◽  
G. S. Shushpannikova ◽  
L. P. Turubanova
Keyword(s):  
Komi Republic ◽  
Oil Fields ◽  
Soil Enrichment ◽  
Far North ◽  
North East ◽  
European North ◽  
Ecological Scales ◽  
Floristic Classification ◽  
Made In

The results of floristic classification of technogenic vegetation (alliance Chamerio angustifolii–Matricarion hookeri A. Ishbirdin et al. 1996, order Chamerio–Betuletalia nanae Khusainov et al. in Sumina 2012, class Matricario–Poetea arcticae A. Ishbirdin in Sumina 2012) conducted by the Braun-Blanquet method (Braun-Blanquet, 1964; Mirkin, Naumova, 1998) are given. 98 geobotanical relevés, made in 1981–2013 on areas of oil fields and suburbs of the Usinsk city (Komi Republic) (56–60о N, 67–66о E), were involved into analysis (Fig. 1). The ecological parameters like moisture (F) and mineral nitrogen soil enrichment (N) were assessed using the Ellenberg ecological scales (Ellenberg, 1974).

Effects of Laser Remelting at Cryogenic Conditions on Microstructure and Wear Resistance of the Ti6Al4V Alloy Applied in Medicine

2011 ◽  
Vol 183 ◽  
pp. 215-224 ◽  
Author(s):  
A. Zieliński ◽  
M. Jażdżewska ◽  
J. Łubiński ◽  
Waldemar Serbiński
Keyword(s):  
Surface Treatment ◽  
Laser Treatment ◽  
Laser Power ◽  
Ti6al4v Alloy ◽  
Laser Remelting ◽  
Linear Rate ◽  
Surface Cracking ◽  
Continuous Work ◽  
Cryogenic Conditions ◽  
Made In

The titanium and its alloys can be subjected to surface treatment, including laser treatment. In this work a new laser treatment at cryogenic conditions of Ti6Al4V alloy has been described. The work has been aimed at establishing whether such surface treatment could be suitable for implants working under wear in biological corrosive environment. The remelting has been made with the use of CO2 continuous work laser at laser power between 3 and 6 kW, at scan rate 0.5 and 1 m/s. The microstructure, surface topography, hardness, microhardness and wear linear rate and mass loss under tribological tests made in Ringer`s solution have been made. The results have shown that despite the surface cracking the tribological properties in simulated body fluid have been substantially improved.

The Ancient Cart-tracks of Malta

Antiquity ◽  
1954 ◽  
Vol 28 (110) ◽  
pp. 91-98 ◽  
Author(s):  
H. S. Gracie
Keyword(s):  
Agricultural Soil ◽  
Field Work ◽  
Present Writer ◽  
Small Scale ◽  
Far North ◽  
South Eastern ◽  
Close Proximity ◽  
Made In

The barren hill-tops of Malta are scored in many places by ancient ruts cut deeply into the rock. They can be seen also on the slopes and on the lower plains, but less frequently because these areas are normally under agricultural soil. They always occur in pairs from 52 to 58 inches apart and were quite clearly used by vehicles. They have been discussed in print for 300 years but no agreement has been reached on how, when or why they were made or what vehicles used them. In fact, there are as many theories as there are authors. Of these writers only Captain E. G. Fenton and Professor Sir T. Zammit appear to have done any serious field work, and none has published a map. The present writer, therefore, decided to attempt the laborious task of plotting them, making such other observations and measurements as he could. Zammit, in the paper cited, reproduced some excellent photographs from both the ground and the air, to which the reader is referred.Time did not permit an examination of the whole island and few observations were made in the low-lying south-eastern part. A fairly intensive survey was made of the high ground as far north as the Baida Ridge, which joins the northern shores of Ghain Tuffieha Bay and St. Paul’s Bay. Two portions of the map are reproduced here. Where there are a number of parallel tracks in close proximity they are shown on the map as one on account of the necessarily small scale used. The gaps in the routes are mainly due to cultivated patches, and no attempt has been made to bridge them by conjecture.

scholarly journals Regional geology and 1:500 000 mapping in North-East Greenland

1990 ◽  
Vol 148 ◽  
pp. 16-20
Author(s):  
N Henriksen
Keyword(s):  
Geological Mapping ◽  
Fold Belt ◽  
East Greenland ◽  
Regional Geology ◽  
Field Mapping ◽  
North East ◽  
General Geology ◽  
Geological Map

A three-year field mapping programme was initiated in 1988 aiming at regional geological studies and geological mapping in North-East Greenland between latitudes 75° and 78°N. This region encompasses relatively little known parts of the Caledonian fold belt and the overlying post-Caledonian sequences, which lie north of the better known regions of central East Greenland (Henriksen, 1989). Major aims of the programme include compilation a 1:500 000 geological map, and an understanding of the general geology of the region.

Ruins of Eskimo Stone Houses on the East Side of Hudson Bay

1946 ◽  
Vol 11 (3) ◽  
pp. 201-202 ◽  
Author(s):  
T. H. Manning
Keyword(s):  
East Coast ◽  
Hudson Bay ◽  
East Side ◽  
Hudson's Bay Company ◽  
Archaeological Material ◽  
Made In ◽  
Hudson’S Bay Company

Archaeological material obtained from Eskimos on the east side of Hudson Bay has been described by Mathiassen, Quimby, and Jenness, but no systematic excavations have been made in the area. Mathiassen was told by Mr. S. Berthfi of Reveillon Frdres that there were house ruins of turf and stone on the east coast of Hudson Bay at Kovik Bay, Mosquito Bay, and Cape Dufferin, and also on the Ottawa Islands; and by Mr. Perdy of the Hudson's Bay Company that there were house ruins at Cape Wolstenholme and many around Port Harrison. Obviously, Mathiassen concluded that these were regular houses of the Thule type. Quimby6 found only oval and rectangular tent rings on the Belcher Islands, and assumed that the semisubterranean houses characteristic of the Thule culture were lacking.

Study and results of an onboard brake monitoring system for freight wagons

2017 ◽  
Vol 232 (5) ◽  
pp. 1277-1294 ◽  
Author(s):  
M Aimar ◽  
A Somà
Keyword(s):  
Monitoring System ◽  
Subsequent Development ◽  
Operating Conditions ◽  
Operating Pressure ◽  
Railway Engineering ◽  
Intermodal Freight ◽  
Energetic Model ◽  
Harsh Conditions ◽  
Made In ◽  
Study Development

This paper presents the background study, development, and testing of a monitoring system for an intermodal freight wagon. The prototype of the onboard unit, developed by the research group of Railway Engineering of Politecnico di Torino, was installed and tested on an intermodal freight wagon owned by the company Ambrogio Trasporti S.p.a. as part of the project ITS Cluster Italy 2020. Significant advances have been made in the field of freight train monitoring. In recent years, many companies have presented specific devices with the aim of monitoring the operating conditions of goods wagons. The developed prototype was tested on a real track. The main vehicle parameters monitored during the tests were the temperature of brake blocks, the operating pressure of the brake system, and the acceleration of the vehicle. The measurements allowed the team to verify the effectiveness and reliability of the monitoring system in harsh conditions. A significant amount of the measured data was then used to validate a first energetic model that is useful for the subsequent development of monitoring and diagnostic algorithms.

GEOLOGY AND PETROLEUM PROSPECTS OF RUATORIA AREA, EAST COAST, NORTH ISLAND, NEW ZEALAND.

1972 ◽  
Vol 12 (1) ◽  
pp. 45
Author(s):  
A.C.M. Laing
Keyword(s):  
New Zealand ◽  
Upper Cretaceous ◽  
East Coast ◽  
Geological Mapping ◽  
Upper Eocene ◽  
Upper Miocene ◽  
Upper Oligocene ◽  
Potential Reservoir ◽  
Surface Geology ◽  
Shallow Structure

As measured in outcrop sections, more than 30,000 ft. (9,000 m.) of Upper Cretaceous and Tertiary marine sediments overlie basement of Lower Cretaceous age in the area. Mudstones, siltstones, and turbidites make up the majority of this sedimentary section but there are also 3,000 ft. (900 m.) of interbedded greywacke sandstones and siltstones of Maestrichtian age, and 400 ft. (120 m.) of interbedded limestone and greensands of Oligocene age. Both of these latter units are potential reservoir beds.The majority of the exploration work has been by surface geological mapping. A number of time-rock units have been used which were initially distinguished by fossils, but which could later be distinguished by lithological differences.Four regional unconformities, base of Upper Cretaceous, near top of Upper Cretaceous, Upper Oligocene, and Upper Miocene have been recognised in the stratigraphic section.A slump breccia of Upper Eocene age has also been mapped extending over an area 25 mi. (40Km) by 5 mi. (8Km) with a maximum thickness of 7500 ft. (2.25Km.) and contains large lumps of older rocks. The sediments of the Ruatoria area are folded into broad synclines and tight anticlines with average dips ranging from 50 degrees in the Upper Cretaceous to 15 degrees in the Upper Miocene. The trend of the folds is northeast in the southern part of the area and northwest in the northern part, the dividing line being the major northwest trending Hikurangi Fault.The area abounds in gas seepages some of which have been capped and exploited. There are records of oil seepages also. Within the 453 sq.mi. (1,178 sq. Km) only nine shallow holes have been drilled all of which recorded some oil or gas shows.Alliance Petroleum has located two wells on the flanks of closed structures outlined by surface geology and shallow structure drilling.

scholarly journals Structural style and kinematics of the Taihang-Luliangshan fold belt, North China: Implications for the Yanshanian orogeny

Lithosphere ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 767-783 ◽  
Author(s):  
Christopher Clinkscales ◽  
Paul Kapp
Keyword(s):  
North China ◽  
Ordos Basin ◽  
Structural Data ◽  
Upper Jurassic ◽  
Geological Mapping ◽  
Fold Belt ◽  
Lower Paleozoic ◽  
The North ◽  
Structural Style ◽  
Fold Belts

Abstract The Middle–Late Jurassic to earliest Cretaceous fold belts of the Yanshanian orogen in North China remain enigmatic with respect to their coeval deformation histories and possible relationship to the contemporaneous Cordilleran-style margin of eastern Asia. We present geological mapping, structural data, and a >400-km-long, strike-perpendicular balanced cross section for the Taihang-Luliangshan fold belt exposed in the late Cenozoic central Shanxi Rift. The northeast-southwest–trending Taihang-Luliangshan fold belt consists of long-wavelength folds (∼35–110 km) with ∼1–9 km of structural relief cored by Archean and Paleoproterozoic metamorphic and igneous basement rocks. The fold belt accommodated ≥11 km of northwest-southeast shortening between the Taihangshan fault, bounding the North China Plain, in the east and the Ordos Basin in the west. Geological mapping in the Xizhoushan, a northeast-southwest–oriented range within the larger Taihangshan mountain belt, reveals two major basement-cored folds: (1) the Xizhou syncline, with an axial trace that extends for ∼100 km and is characterized by a steep to overturned forelimb consistent with a southeast sense of vergence, and (2) the Hutuo River anticline, which exposes Archean–Paleoproterozoic rocks in its core that are unconformably overlain by shallowly dipping (<∼20°) Lower Paleozoic rocks. In the Luliangshan, Mesozoic structures include the Luliang anticline, the largest recognized anticline in the region, the Ningjing syncline, which preserves a complete section of Paleozoic to Upper Jurassic strata, and the Wuzhai anticline; together, these folds are characterized by a wavelength of ∼45–50 km. Shortening in the Taihang-Luliangshan fold belt is estimated to have occurred between ca. 160 Ma and 135 Ma, based on the age of the youngest deformed Upper Jurassic rocks in the Ningjing syncline, previously published low-temperature thermochronology, and regional correlations to better-studied Yanshanian fold belts. The timing of basement-involved deformation in the Taihang-Luliangshan fold belt, which formed >1000 km from the nearest plate margin, corresponds with the termination of arc magmatism along the eastern margin of Asia, implying a potential linkage to the kinematics of the westward-subducting Izanagi (paleo-Pacific) plate.

The Drosophilidae (Diptera) of Iron Range, Queensland.

1982 ◽  
Vol 30 (4) ◽  
pp. 681 ◽  
Author(s):  
SF Mcevey ◽  
IR Bock
Keyword(s):  
New Species ◽  
Iron Range ◽  
Far North ◽  
One New Species ◽  
Made In

A collection made in the rainforests of Iron Range. far north Queensland, in May 1981 yielded 54 species of Drosophilidae in the genera Drosophila (34 species, six described as new; first Australian record for D. menisigra Bachli), Liodrosophila (three species). Sphaerogastrella (one species), Zygothrica (one species), Nesiodrosophila (two species, both new). Microdrosophila (three species), Mycodrosophila (seven species, three new), Paramycodrosophila (one new species) and Leucophenga (two species). Seventy-six described species of Drosophilidae have now been recorded at Iron Range, and several further species are known to exist; a key to these species is provided. The 12 new species described in this paper bring the Australian drosophilid total to 234.

The biting habits of Aedes (Skusea) pembaensis Theo. and some other mosquitos of Faza, Pate Island, East Africa

1964 ◽  
Vol 55 (1) ◽  
pp. 97-124 ◽  
Author(s):  
E. C. C. van Someren ◽  
M. Furlong
Keyword(s):  
East Africa ◽  
East Coast ◽  
The Other ◽  
Moon Phase ◽  
Moon Phases ◽  
Biphasic Pattern ◽  
North East ◽  
The North ◽  
Biting Behaviour ◽  
Made In

Descriptions are given of 24-hour biting catches, made in and around Faza, a village on Pate Island, off the north-east coast of Kenya, East Africa.Aedes pembaensis Theo. was the predominant mosquito in these catches but fair numbers of Aedes mombasaensis Mattingly were also taken; the biting cycles of these two are discussed. Six other species were taken in small numbers.For Ae. pembaensis, biting cycles calculated on catches grouped for site, moon phases, neap tides and spring tides show that both moon and tide and light intensity influence the biting behaviour. Different but recurring patterns occur with various combinations of these factors.For Ae. mombasaensis, the cycles have a very constant biphasic pattern. Catches grouped for moon phases, tides and catch sites, as for Ae. pembaensis, show that more biting females are taken at neap tides than at spring tides. Two patterns of behaviour occur, one associated with spring tides and the other with neap tides. An even level of biting activity occurs during the night with intense and prolonged moonlight; otherwise moon-phase cycles have little effect on biting behaviour.It is felt that 24-hour biting catches can give useful information on behaviour patterns but it is desirable to have a long series of catches to analyse. For the purpose of calculating biting cycles, the results of catches showing similar modifications in behaviour should be treated separately.

Sign in / Sign up

Export Citation Format

Share Document