Sentence examples for occurrence mainly from inspiring English sources

With only minor indications of fossil occurrence (mainly in the form of algal stromatolites), no effective method of quantifying this loosely constructed chronology existed until the discovery of radioactivity enabled dating procedures to be applied directly to the rocks in question.

The influence of bedding planes' occurrence mainly depends on the initiation position of the fractures, the influence increases with increasing the horizontal stress ratio and pore pressure.

Our results show the enrichment of SSR occurrence mainly for genes related to this structural level.

For the RAD libraries, the accession coverage of SNPs in cRS and ncRS reads showed the same extreme difference as seen for the read start sites, with the cRS heavily weighted towards coverage of all eight accessions and the ncRS towards occurrence mainly in individual accessions.

Since the beginning of the 20th century, more than 150 sinkhole occurrences, mainly dropout (or cover-collapse) sinkholes, have been reported in the Tournaisis area (south-eastern Belgium).

They were of the view that a greater dependence of the programme donor funds was primarily responsible for such occurrences: Mainly, the challenge of equitable distribution of resources has a lot to do with funding.

Bird occurrence was mainly related to fragment size but also to vegetation structure and fragment connectivity.

The forecast of debris flow occurrence relies mainly on empirical rainfall intensity duration thresholds, which are based on rain gauge observations.

For these rocks, groundwater occurrence is mainly controlled by the development of secondary porosities such as the presence of fractures, joints and faults (Junner and Bates 1945).

At high latitudes, irregularities causing scintillation are associated with large-scale plasma structures and scintillation occurrence is mainly enhanced during geomagnetic storms, even in the solar minimum years (Aarons et al. 2000; Ngwira et al. 2010 and the references therein).

For Cr-doped TiO2, the IELs act as a shallow donor, and their occurrence is mainly due to the Cr 3d states that lie at the bottom of CB as shown in Figure 3.