162
výsledků v rámci
Téma
Geofyzika
Geofyzika
Studium fyzikálních procesů a jevů probíhajících na Zemi a v jejím okolí
The Tyrone Igneous Complex of Northern Ireland has been a target for base and precious metal exploration since the 1970s. Historic exploration was hampered by poor exposure and consequently a limited understanding of the local geology. Extensive new field…
Using the Tellus and Tellus Border geochemistry data, the distribution of metals in topsoils in and around Derry–Londonderry has been mapped and assessed. The concentrations of metals have been compared with the UK Environment Agency’s Soil Guideline Valu…
This review paper discusses how Tellus and Tellus Border soil and stream geochemistry data have been used to investigate the spatial relationship between certain diseases and levels of potentially harmful elements (PHEs) in soils and water. The research h…
Soil geochemistry may be applied in the science of geoforensics in two ways: to establish the provenance of samples and to inform the question of sample variability. Tellus data can assist in answering on a broad scale the provenance question, ‘where may …
The Palaeogene Mourne Mountains Complex in County Down is a potential geothermal energy resource due to the high levels of radioactivity in its granitic rocks. The regional Tellus geochemical and geophysical surveys mapped the radioelement distribution of…
Knowing the background or threshold concentrations of different elements in soil is essential in assessing whether or not a concentration is anomalous. Various methods have been applied to defining thresholds and it is important in applying the results of…
When an Ireland-wide project to undertake detailed geochemical and geophysical coverage was first discussed at the turn of the 21st century by the Geological Surveys of the UK, the Republic of Ireland, Northern Ireland and the USA, the original acronym gi…
Although a local origin of Irish Bronze Age gold artifacts has never been confirmed, the widespread distribution of gold particles in stream gravels suggests a local bedrock origin. Significant bedrock mineralisation was discovered in County Monaghan in t…
The statistical process of ‘self-modelling mixture resolution’ has been used to identify chemical signatures of diffuse pollution in the topsoil samples of the Tellus Border geochemical survey, Ireland. Seventeen geochemical components were identified, of…
There is global concern about the availability of ‘critical’ metals: those of growing economic importance but vulnerable to supply shortage. Production from domestic resources could contribute to security of supply. However, we have little information on …
In 2003, Mayo County Council archaeologists undertook the excavation of five archaeological areas in advance of the construction of the N26 Ballina to Bohola (Stage 1) road scheme.These excavations were conducted on behalf of the National Road…
On a long, low ridge in the small townland of Raystown, Co. Meath, west of what is now Ashbourne, people began burying their dead in an enclosed cemetery in the early fifth century AD. This place was to endure for at least 600 years as a large farming set…
Zaniklá středověká vesnice Ve spáleném u Vyžlovky (střední Čechy) se vyznačuje výraznými terénními relikty, které už přes sto let přitahují archeologický zájem. Její úplný a trvalý zánik spadal do průběhu 14. až počátku 15. století. Nacházela se u pramenn…
The fault displacement monitoring network EU-TecNet was established to define microdisplacements across faults in the territory of Central Europe (www.tecnet.cz) using three-dimensional optical-mechanical extensometers. The results of long-term neotectoni…
Jan Hálek.
The GRACE satellites have provided gravity field solutions with approximately monthly resolution since April 2002. The monthly solutions enable investigations of the annual, semi-annual and secular mass variations, which mainly occur in a thin layer of th…
USA: the satellite Anna launched from Cape Canaveral. Italy: conclusion of the 44th Motorshow in Turin. USA: the Soviet ship Zarja, employed for hydrographic studies in the Pacific Ocean, arrives in San Francisco. Italy: a transport service guarantees the…
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Eine 18 Meter lange Brücke aus Holz und Stahl überspannt symbolisch als "Brücke zwischen den Kontinenten" den Graben zwischen der eurasischen und der nordamerikanischen Kontinentalplatte. Aufgenommen am 31. Mai 2012 bei Keflavik