scholarly journals Maurice Lugeon 1870-1953

1954 ◽  
Vol 9 (1) ◽  
pp. 164-173 ◽  

Maurice Lugeon was born on 10 July 1870, at Poissy near Paris; but from 1876 onwards his home-town was Lausanne on the Swiss, that is the north, shore of the Lake of Geneva. Here he died on 23 October 1953 , after several months of illness. Lugeon has emphasized that two names, Chablais among places and Bertrand among persons, played a particularly important role in his life. Chablais is the district of France which faces Lausanne across the Lake of Geneva. Bertrand is the ever popular hero of French geology—Lugeon has styled him the ‘Confucius of tectonics’, that is of earth structure . Chablais is mainly occupied by the south-western portion of what geologists call the Prealps, or more specifically the Prealpes romandes. Geographically these Prealps furnish an ill-defined and local border-zone to the Alps as a whole. Running north-eastwards, they leave French territory near the east end of Lake Geneva to continue through Switzerland to the Lake of Thun. Their total length is 120 km, and maximum breadth 40 km. To the north-west the Swiss Plain spreads out before them, mostly well below 1000 m, whereas their own summits often reach above 2000 m, while those of the High Limestone Alps immediately to the south-east rise clad in snow to over 3000 m (Dent du Midi, Diablerets, Wildhorn, Wildstrubel).

1913 ◽  
Vol 10 (5) ◽  
pp. 205-215 ◽  
Author(s):  
A. R. Horwood

Although the Rhætic beds are not exposed continuously along the eastern boundary of the Keuper outcrop, they have been proved at many points from the River Trent in the north on the Nottinghamshire border to Glen Parva in the south. South of this point there is so much drift, and borings within the Liassic outcrop have been so isolated or shallow, that there is a gap in our knowledge of the intervening ground between the last point and the Rugby district. The Countesthorpe boring, carried to a depth of over 600 feet, encountered Upper Keuper beneath the Drift, with no intervening Rhætics. Commencing in the north in the Gotham district the two outliers are capped above the Red Marl and Tea-green Marl with Rhætic beds, and Lower Lias Limestone (Ps. planorbe zone) above. At Ash Spinney at the south end of the southern outlier, and at the east end of Crownend Wood, Black Shales with Avicula contorta crop out; and on the west side septaria are seen. On the north-west side of the northern outlier at Cottager's Hill Protocardium phillipianum has been found in a well-section near the lane. Rhætic shales are seen in the shafts driven for gypsum works about Gotham.


1977 ◽  
Vol 43 ◽  
pp. 263-286 ◽  
Author(s):  
Peter S. Gelling

Pilsdon Pen is in west Dorset, very close to the Devon border, some 6 miles north-west of Bridport, and about 5½ miles from the nearest point of the coast (ST 413013). It is a long flat-topped hill, the highest in Dorset, reaching 908 ft above OD, and dominating Marshwood Vale from the north. The hill-fort occupies the south-east end of the Pen, at the north-west end of which there is a small embanked enclosure, much levelled by ploughing, which could be of Iron Age date also. The two nearest hill-forts are Lambert's Castle and Coneys Castle, about 3 and 3½ miles away respectively, which overlook Marshwood Vale from the west (fig. 1).Excavation began in 1964, and continued annually until 1971, all but one of the seasons lasting four weeks. The work was initiated, and largely supported, by the owner of the site, Mr Michael Pinney, of Bettiscombe Manor, to whom archaeology owes a great debt. Mrs Betty Pinney was one of our most skilful excavators, and all those who took part will remember her hospitality. Financial help was also given by the Dorset Natural History and Archaeological Society and by Birmingham University. Among many helpers, to all of whom I am most grateful, I should like to mention in particular my wife, who shouldered the daunting task of keeping the camp supplied, and Mr Jack Wells, of Tanyard Farm, Marshwood, without whose regular assistance the excavation would have taken much longer, and cost a great deal more.


1959 ◽  
Vol 53 ◽  
pp. 1-8 ◽  
Author(s):  
J. M. Cook

The site of Old Smyrna lies on a low spur at the foot of the Yamanlar Daği, or Mountain of Unco Things, at a distance of 450 metres east of the present coastline. The spur is 365 metres long on a north-south axis, with a maximum breadth of 250 metres. On the north-east and east its outline is marked by a bank, revetted in large part by a high terrace wall of small stones. The elevated north-west corner of the site is encircled by superimposed terraces leading up to a circular platform or belvedere, which dominates the site, at an altitude of 21·3 m. above sea-level (Plates 2c, 6a, Squares G–Hix). On the west side the spur is bounded by a cart road leading inland to Bornova, and at the south tip it merges into the low-lying pasturage by a sluggish stream. The terracing of the hillock, which in the north-west presents a picturesque aspect, is believed in the main to be the work of a landowner named Turlita in the nineteenth century. A zone along the north side of the site, corresponding in width to the main sector of our excavations there, is planted with olive trees, of which we were obliged to cut down a score; there is also a narrow fringe of olives along the eastern edge of the site. The greater part of the surface of the hillock is divided between two vineyards, the upper on the north and the lower on the south, separated by a bank which is bordered near its east end by a row of fig trees (Squares Nxvi to Gxix); there is also a smaller vineyard of triangular outline on the slope between the upper vineyard and the Bornova road.


Author(s):  
A., C. Prasetyo

Overpressure existence represents a geological hazard; therefore, an accurate pore pressure prediction is critical for well planning and drilling procedures, etc. Overpressure is a geological phenomenon usually generated by two mechanisms, loading (disequilibrium compaction) and unloading mechanisms (diagenesis and hydrocarbon generation) and they are all geological processes. This research was conducted based on analytical and descriptive methods integrated with well data including wireline log, laboratory test and well test data. This research was conducted based on quantitative estimate of pore pressures using the Eaton Method. The stages are determining shale intervals with GR logs, calculating vertical stress/overburden stress values, determining normal compaction trends, making cross plots of sonic logs against density logs, calculating geothermal gradients, analyzing hydrocarbon maturity, and calculating sedimentation rates with burial history. The research conducted an analysis method on the distribution of clay mineral composition to determine depositional environment and its relationship to overpressure. The wells include GAP-01, GAP-02, GAP-03, and GAP-04 which has an overpressure zone range at depth 8501-10988 ft. The pressure value within the 4 wells has a range between 4358-7451 Psi. Overpressure mechanism in the GAP field is caused by non-loading mechanism (clay mineral diagenesis and hydrocarbon maturation). Overpressure distribution is controlled by its stratigraphy. Therefore, it is possible overpressure is spread quite broadly, especially in the low morphology of the “GAP” Field. This relates to the delta depositional environment with thick shale. Based on clay minerals distribution, the northern part (GAP 02 & 03) has more clay mineral content compared to the south and this can be interpreted increasingly towards sea (low energy regime) and facies turned into pro-delta. Overpressure might be found shallower in the north than the south due to higher clay mineral content present to the north.


Author(s):  
Henrik Stendal ◽  
Wulf Mueller ◽  
Nicolai Birkedal ◽  
Esben I. Hansen ◽  
Claus Østergaard

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Stendal, H., Mueller, W., Birkedal, N., Hansen, E. I., & Østergaard, C. (1997). Mafic igneous rocks and mineralisation in the Palaeoproterozoic Ketilidian orogen, South-East Greenland: project SUPRASYD 1996. Geology of Greenland Survey Bulletin, 176, 66-74. https://doi.org/10.34194/ggub.v176.5064 _______________ The multidisciplinary SUPRASYD project (1992–96) focused on a regional investigation of the Palaeoproterozoic Ketilidian orogenic belt which crosses the southern tip of Greenland. Apart from a broad range of geological and structural studies (Nielsen et al., 1993; Garde & Schønwandt, 1994, 1995; Garde et al., 1997), the project included a mineral resource evaluation of the supracrustal sequences associated with the Ketilidian orogen (e.g. Mosher, 1995). The Ketilidian orogen of southern Greenland can be divided from north-west to south-east into: (1) a border zone in which the crystalline rocks of the Archaean craton are unconformably overlain by Ketilidian supracrustal rocks; (2) a major polyphase pluton, referred to as the Julianehåb batholith; and (3) extensive areas of Ketilidian supracrustal rocks, divided into psammitic and pelitic rocks with subordinate interstratified mafic volcanic rocks (Fig. 1). The Julianehåb batholith is viewed as emplaced in a magmatic arc setting; the supracrustal sequences south of the batholith have been interpreted as either (1) deposited in an intra-arc and fore-arc basin (Chadwick & Garde, 1996), or (2) deposited in a back-arc or intra-arc setting (Stendal & Swager, 1995; Swager, 1995). Both possibilities are plausible and infer subduction-related processes. Regional compilations of geological, geochemical and geophysical data for southern Greenland have been presented by Thorning et al. (1994). Mosher (1995) has recently reviewed the mineral exploration potential of the region. The commercial company Nunaoil A/S has been engaged in gold prospecting in South Greenland since 1990 (e.g. Gowen et al., 1993). A principal goal of the SUPRASYD project was to test the mineral potential of the Ketilidian supracrustal sequences and define the gold potential in the shear zones in the Julianehåb batholith. Previous work has substantiated a gold potential in amphibolitic rocks in the south-west coastal areas (Gowen et al., 1993.), and in the amphibolitic rocks of the Kutseq area (Swager et al., 1995). Field work in 1996 was focused on prospective gold-bearing sites in mafic rocks in South-East Greenland. Three M.Sc. students mapped showings under the supervision of the H. S., while an area on the south side of Kangerluluk fjord was mapped by H. S. and W. M. (Fig. 4).


1987 ◽  
Vol 107 ◽  
pp. 182-182
Author(s):  
Reynold Higgins

A recent discovery on the island of Aegina by Professor H. Walter (University of Salzburg) throws a new light on the origins of the so-called Aegina Treasure in the British Museum.In 1982 the Austrians were excavating the Bronze Age settlement on Cape Kolonna, to the north-west of Aegina town. Immediately to the east of the ruined Temple of Apollo, and close to the South Gate of the prehistoric Lower Town, they found an unrobbed shaft grave containing the burial of a warrior. The gravegoods (now exhibited in the splendid new Museum on the Kolonna site) included a bronze sword with a gold and ivory hilt, three bronze daggers, one with gold fittings, a bronze spear-head, arrowheads of obsidian, boar's tusks from a helmet, and fragments of a gold diadem (plate Va). The grave also contained Middle Minoan, Middle Cycladic, and Middle Helladic (Mattpainted) pottery. The pottery and the location of the grave in association with the ‘Ninth City’ combine to give a date for the burial of about 1700 BC; and the richness of the grave-goods would suggest that the dead man was a king.


1954 ◽  
Vol 49 ◽  
pp. 267-291
Author(s):  
Elizabeth B. Wace

The Cyclopean Terrace Building lies to the north-west of the Lion Gate on the northern end of the Panagia Ridge and faces almost due west across the valley of the Kephissos and modern main road from Corinth to Argos. It lies just below the 200 m. contour line, and one terrace below the houses excavated in 1950–51 by Dr. Papadimitriou and Mr. Petsas to the east at the same end of the ridge. The area contains a complex of buildings, both successive and contemporary, and in view of the discovery of structures both to the south-west and, by the Greek Archaeological Service, to the north-east it is likely that this whole slope was covered by a portion of the outer town of Mycenae. This report will deal only with the structure to which the name Cyclopean Terrace Building was originally given, the so-called ‘North Megaron’, supported by the heavy main terrace wall.The excavation of this structure was begun in 1923. The main terrace wall was cleared and two L.H. IIIC burials discovered in the top of the fill in the south room. In 1950 it was decided to attempt to clear this building entirely in an endeavour to find out its date and purpose. The clearing was not, however, substantially completed until the close of the 1953 excavation season, and this report presents the available evidence for the date as determined by the pottery found beneath the building; the purpose is still a matter for study, though various tentative conclusions can be put forward.


2017 ◽  
Vol 31 (3) ◽  
pp. 393-400 ◽  
Author(s):  
Renato Ribeiro Passos ◽  
Liovando Marciano da Costa ◽  
Igor Rodrigues de Assis ◽  
Danilo Andrade Santos ◽  
Hugo Alberto Ruiz ◽  
...  

AbstractThe efficient use of water is increasingly important and proper soil management, within the specificities of each region of the country, allows achieving greater efficiency. The South and Caparaó regions of Espírito Santo, Brazil are characterized by relief of ‘hill seas’ with differences in the degree of pasture degradation due to sun exposure. The objective of this study was to evaluate the least limiting water range in Udox soil under degraded pastures with two faces of exposure to the sun and three pedoenvironments. In each pedoenvironment, namely Alegre, Celina, and Café, two areas were selected, one with exposure on the North/West face and the other on the South/East face. In each of these areas, undisturbed soil samples were collected at 0-10 cm depth to determine the least limiting water range. The exposed face of the pasture that received the highest solar incidence (North/West) presented the lowest values in least limiting water range. The least limiting water range proved to be a physical quality indicator for Udox soil under degraded pastures.


1920 ◽  
Vol 3 (2) ◽  
pp. 219-243
Author(s):  
J. Reid Moir

When visiting Mundesley, in Norfolk, in September, 1916, the present author found upon the shore, in close proximity to an exposure of clay which he now considers to be referable to the Cromer Forest Bed Series, a very finely-made and large flint flake, of human manufacture. This discovery induced him to again visit Mundesley, and during this year (1919) close upon three weeks have been spent in an examination of the stretch of cliffs and shore lying between Trimingham, to the north-west of Mundesley, and Bacton, which lies to the south-east.The author's researches have been greatly helped by the co-operation of three friends, Professor A. S. Barnes, Mr. Walter B. Nichols, and the Hon. Robert Gathorne-Hardy, who accompanied him to Mundesley, and to whom he offers his warmest thanks. He would, however, wish to make it clear that these gentlemen are in no way responsible for the statements made in this paper. For these the author is solely responsible.


1894 ◽  
Vol 1 (9) ◽  
pp. 394-399 ◽  
Author(s):  
J. Burr Tyrrell

In the extreme northernmost part of Canada, lying between North Latitudes 56° and 68° and West Longitudes 88° and 112°, is an area of about 400,000 square miles, which had up to the past two years remained geologically unexplored.In 1892 the Director of the Geological Survey of Canada sent the writer to explore the country north of Churchill River, and south-west of Lake Athabasca;in1893 the exploration was continued northward, along the north shore of Athabasca Lake


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