scholarly journals Impact of penguin biotransport on the floral landscape of the South Sandwich Islands

2020 ◽  
Author(s):  
Max Gotts ◽  
Dylan Taylor
Keyword(s):  
Biochemical Composition ◽  
Research Question ◽  
The South ◽  
Run Off ◽  
Geothermal Activity ◽  
South Sandwich Islands ◽  
Ornithogenic Soil

Research Question: To what extent is local flora influenced by ornithogenic soil biochemical-composition in the South Sandwich Islands, with special attention given to Zavodovski, and what are the down-stream effects on the geology of the islands? Hypothesis: Areas supplied by fluvial run-off from penguin colonies, especially crˆeches, host the most productive and species rich floral landscapes, even after controlling for geothermal activity.

scholarly journals Impact of penguin biotransport on the floral landscape of the South Sandwich Islands

2020 ◽  
Author(s):  
Max Gotts ◽  
Dylan Taylor
Keyword(s):  
Biochemical Composition ◽  
Research Question ◽  
The South ◽  
Run Off ◽  
Geothermal Activity ◽  
South Sandwich Islands ◽  
Ornithogenic Soil

Research Question To what extent is local flora influenced by ornithogenic soil biochemical-composition in the South Sandwich Islands, with special attention given to Zavodovski, and what are the down-stream effects on the geology of the islands? Hypothesis Areas supplied by fluvial run-off from penguin colonies, especially crˆeches, host the most productive and species rich floral landscapes, even after controlling for geothermal activity.

Observations in the South Sandwich Islands, 1962

Polar Record ◽  
1963 ◽  
Vol 11 (73) ◽  
pp. 394-405 ◽  
Author(s):  
M. W. Holdgate
Keyword(s):  
Island Arc ◽  
Deep South ◽  
Volcanic Island ◽  
The South ◽  
The West ◽  
Antarctic Region ◽  
South Sandwich Islands ◽  
Scotia Arc ◽  
The Antarctic ◽  
North And South

The South Sandwich Islands lie between lats. 56° 18′ S. and 59° 28′ S., and between longs. 26° 14′ W., and 28° 11′ W. There are eleven islands, of which ten form a curved chain stretching north and south while the eleventh, Leskov Island, lies to the west of the group near its northern end. The group is the only typical volcanic island arc in the Antarctic region and forms the easternmost section of the Scotia Arc; to the east it is bounded by the associated deep South Sandwich Trench.

Seismic and geodetic response to crustal deformation in Krísuvík volcanic system, southwest Iceland

2020 ◽  
Author(s):  
Revathy M. Parameswaran ◽  
Ingi Th. Bjarnason ◽  
Freysteinn Sigmundsson
Keyword(s):  
Stress Field ◽  
Crustal Deformation ◽  
High Energy ◽  
Strike Slip ◽  
Normal Faults ◽  
Seismic Zone ◽  
The South ◽  
The West ◽  
Volcanic System ◽  
Geothermal Activity

<p>The Reykjanes Peninsula (RP) is a transtensional plate boundary in southwest Iceland that marks the transition of the Mid-Atlantic Ridge (MAR) from the offshore divergent Reykjanes Ridge (RR) in the west to the South Iceland Seismic Zone (SISZ) in the east. The seismicity here trends ~N80°E in central RP and bends to ~N45°E at its western tip as it joins RR. Seismic surveys, geodetic studies, and recent GPS-based kinematic models indicate that the seismic zone is a collection of strike-slip and normal faults (e.g., Keiding et al., 2008). Meanwhile, the tectonic processes in the region also manifest as NE-SW trending volcanic fissures and normal faults, and N-S oriented dextral faults (e.g., Clifton and Kattenhorn, 2006). The largest of these fissure and normal-fault systems in RP is the Krísuvík-Trölladyngja volcanic system, which is a high-energy geothermal zone. The seismicity here predominantly manifests RP’s transtentional tectonics; however, also hosts triggered events such as those following the 17 June 2000 Mw6.5 earthquake in the SISZ (Árnadottir et al., 2004) ~80 km east of Krísuvík. Stress inversions of microearthquakes from 1997-2006 in the RP indicate that the current stress state is mostly strike-slip with increased normal component to the west, indicating that the seismicity is driven by plate diverging motion (Keiding et al., 2009). However, the geothermal system in Krísuvík is a potential secondary source for triggered seismicity and deformation. This study uses seismic and geodetic data to evaluate the activity in the Krísuvík-Trölladyngja volcanic system. The seismic data is used to identify specific areas of focused activity and evaluate variations in the stress field associated with plate motion and/or geothermal activity over space and time. The data used, within the time period 2007-2016, was collected by the the South Icelandic Lowland (SIL) seismic network operated and managed by the Iceland Meterological Office (IMO). Furthermore, variations in seismicity are compared to crustal deformation observed with TerraSAR-X images from 2009-2019. Crustal changes in the Krísuvík area are quantified to develop a model for corresponding deformation sources. These changes are then correlated with the stress-field variations determined with seismic analysis.</p>

scholarly journals Magnetic particles in the sediments of the south Ukraine rivers as the marker of the technogenic impact on the hydroecosystems

2021 ◽  
Vol 234 ◽  
pp. 00048
Author(s):  
Tetiana Alokhina
Keyword(s):  
Large Scale ◽  
Magnetic Particles ◽  
River Sediments ◽  
The South ◽  
Mining Areas ◽  
River Bed ◽  
Run Off ◽  
Processing Plants ◽  
Iron Ore Deposit ◽  
A Chain

Long-term and large-scale man-made activity in the mining areas affects to all components of the biosphere. The result of mining impact on hydroecosystems is addition to natural sources of sedimentary material technogenic components in large volumes. Magnetic particles are one of technogenic components which come with surface run-off to the river bed. We have studied the content of magnetic particles in the sediments of the south Ukraine rivers: the Inhulets River and the Inhul River ‒ the tributaries of the Dnieper and the Southern Buh, respectively. The Inhulets River flows along the Kryvyi Rih iron ore deposit, parallel the river there is a chain of open-pits, mines, mining and processing plants, a metallurgical plant. The results of our research were demonstrated within the Kryvyi Rih industrial agglomeration a number of magnetic particles in the sediment samples varies from 59,5% to 2,1%. Upstream from the Kryvyi Rih city on 10-15 km a number of magnetic particles is within 1,5%. Based on numerous sources of literature and own researches, it has been determined that detection of magnetic particles and properties is a convenient, cheap, quick and informative method of technogenic pollution studying of river sediments and also mirror the industrial history of the region.

scholarly journals Whatever happened to God’s holiness? The holiness of God and the theological authenticity of the South African neo-Pentecostal prophetic activities

2021 ◽  
Vol 42 (1) ◽  
Author(s):  
Collium Banda
Keyword(s):  
South Africa ◽  
South African ◽  
Research Question ◽  
Theoretical Framework ◽  
The South ◽  
Human Needs ◽  
Theological Perspective ◽  
Doctrine Of The Church ◽  
The Church

The controversial activities of the neo-Pentecostal prophets (NPPs) in South Africa raise many theological questions. From a systematic theological perspective that affirms the importance of Christian doctrines in regulating church worship and practice, this article uses God’s holiness to evaluate the theological authenticity of the NPPs’ controversial activities. The research question answered in the article is: how can an understanding of the holiness of God empower Christian believers to respond meaningfully to the controversial practices? The article begins by describing the theoretical framework of God’s holiness. This is followed by describing the NPPs’ shift from prophecy focusing on holiness to one focused on human needs. Furthermore, this shift among the NPPs from holiness to human needs is attributed to celebrity cultism through which the prophets thrust themselves as powerful figures who are able to solve people’s problems. Afterward an analysis is made of how the holiness of God is violated by the NPPs’ controversial practices. Finally, some steps are suggested for NPPs and their followers to take to align their activities with God’s holiness. The contribution of the article lies in highlighting the importance of God’s holiness as a standard of measuring the Christian authenticity of the controversial activities of the NPPs in South Africa.Intradisciplinary and/or interdisciplinary implications: The article uses insights from the doctrine of God’s holiness, the role of biblical prophecy and the doctrine of the church, to critique the controversial activities of the NPPs in South Africa.

Sign in / Sign up

Export Citation Format

Share Document