Lithofacies analysis of the Proterozoic Thelon Formation, Northwest Territories (including computer analysis of field data)

1973 ◽  
Author(s):  
Michael Cecile
Keyword(s):  
Northwest Territories ◽  
Computer Analysis ◽  
Field Data

Field data and till composition in the GEM-2 Rae Glacial Synthesis Activity field areas, Nunavut and Northwest Territories

2021 ◽  
Author(s):  
J E Campbell ◽  
I McMartin ◽  
M W McCurdy ◽  
P -M Godbout ◽  
T Tremblay ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Field Data ◽  
Synthesis Activity

Geology and petrochemistry of lower Aphebian (2.4–2.0 Ga) alkaline plutonic and hypabyssal rocks in the East Arm of Great Slave Lake, Northwest Territories

1979 ◽  
Vol 16 (1) ◽  
pp. 60-72 ◽  
Author(s):  
J. P. N. Badham
Keyword(s):  
Northwest Territories ◽  
Field Data ◽  
Easter Island ◽  
Chemical Data ◽  
Lower Proterozoic ◽  
Great Slave Lake ◽  
Data Support ◽  
Igneous Complexes ◽  
Igneous Activity ◽  
History Of

Two alkaline igneous complexes and three lines of diatreme breccias were emplaced in the East Arm of Great Slave Lake during the lower Proterozoic. Field relationships suggest that those rocks are broadly cogenetic and were emplaced about 2.1 Ga ago.One of the intrusions, the Easter Island dyke, was rotated subsequent to emplacement such that both top and bottom are now exposed. Field and petrographic data are indicative of progressive differentiation along (i.e., up) the dyke and are substantiated by chemical data. The differentiation history of the early gabbros of the Blachford Lake complex is similar. Late differentiates of both complexes closely resemble the igneous matrices of the breccias and petrographic and chemical data support the proposal of cogenesis and contemporaneity.The field data show that there was a period of significant faulting and concomitant alkaline igneous activity in the East Arm area in the lower Proterozoic.

Phytogeographical relationships of the northern islands of the New Hebrides

1975 ◽  
Vol 272 (918) ◽  
pp. 385-390 ◽  
Keyword(s):  
Geographical Distribution ◽  
Computer Analysis ◽  
Field Data ◽  
Evidence Based ◽  
Pacific Region ◽  
Vegetation Types ◽  
Southwest Pacific ◽  
The North ◽  
New Hebrides

A brief account is given of the geographical distribution of the major vegetation types in the New Hebrides. Evidence based on computer analysis of field data indicates a disjunction at about I8° S latitude that divides the island chain into ‘northern’ and ‘southern’ groups with an attenuation from complex to simple vegetation types as latitude increases. The phytogeography of some of the major vegetation types in the north is discussed within the context of the southwest Pacific region.

Observations of soil freezing and frost heave at Inuvik, Northwest Territories, Canada

1985 ◽  
Vol 22 (2) ◽  
pp. 283-290 ◽  
Author(s):  
M. W. Smith
Keyword(s):  
Northwest Territories ◽  
Field Data ◽  
Negative Temperature ◽  
Frozen Soil ◽  
Soil Freezing ◽  
Frost Heave ◽  
Moisture Regime ◽  
Silty Clay ◽  
Field Observations ◽  
Moisture Migration

Field observations of soil temperature, moisture regime, and frost heave in silty clay hummocks at Inuvik, Northwest Territories, over the fall and early winter reveal that a significant amount of moisture migration and frost heave occurs within frozen soil at temperatures down to −2.4°C. The field data are analysed using thermodynamic considerations, and the apparent hydraulic conductivity is determined as a function of negative temperature. The conductivity falls from near 7 × 10−9 m s−1 above 0 °C to about 3.5 × 10−12 m s−1 at −1 °C, then remains fairly constant down to −2.4 °C. The observed decrease in heave with time is explained in terms of a diminishing water supply at the base of the active layer.

scholarly journals Field data capture

1990 ◽  
Vol 14 (5) ◽  
pp. 292-294
Author(s):  
A. J. D. Macdonald ◽  
A. Simpson
Keyword(s):  
Computer Analysis ◽  
Field Data ◽  
Hard Disk ◽  
Data Capture ◽  
Psychiatric Research ◽  
Magnetic Media ◽  
Structured Interviews ◽  
Centre Of Excellence ◽  
The Subject

The process of psychiatric research, as distinct from its content, has been the subject of little comment. Central to present-day techniques are the use of questionnaires and more or less structured interviews. Pre-coded data are preferred, and even if there are few cases in any one study, the quantity of data collected for each usually compensates for this and justifies computer analysis, using statistical packages such as SPSS∗. The days of punched cards have passed (only in the last eight years in one centre of excellence), so at least one of the error-prone steps (transfer of data from paper schedules by card-puncher) has been abolished, but the major chore is still this process, albeit direct to magnetic media (floppy or hard disk).

Computer analysis of side-band holography in STEM

1991 ◽  
Vol 49 ◽  
pp. 684-685
Author(s):  
M.A. Gribelyuk ◽  
J.M. Cowley
Keyword(s):  
Interference Pattern ◽  
Computer Analysis ◽  
Side Band ◽  
Diffraction Plane ◽  
Illumination System ◽  
Probe Size

Recently the use of a biprism in a STEM instrument has been suggested for recording of a hologram. A biprism is inserted in the illumination system and creates two coherent focussed beams at the specimen level with a probe size d= 5-10Å. If one beam passes through an object and another one passes in vacuum, an interference pattern, i.e. a hologram can be observed in diffraction plane (Fig.1).

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