This interpretation is supported by the presence of siliceous veins proceeding from the underlying detrital
sediments, which often penetrate the limestone blocks.
spiders, carabids and staphylinids, as biological control measures in agroecosystems due to their ability to significantly affect the population dynamics of plant and detrital
Differences in spider numbers between islands in the Gulf of California can be attributed to differing rates of detrital
input from the marine environment (Polis and Hurd 1995, 1996, Polis et al.
4), reflecting a larger continental detrital
component in a more near-shore environment (evaporation lagoon).
This conclusion is supported by the detrital
zircon assemblage reported by Force and Barr (2012).
The authors who globally tried to express the modes of erosion and transportation of the detrital
material of the Earth concordantly stress the importance of aquatic environment, the leading role of rivers, and transportation in suspension.
Based on detrital
zircon age populations, the Connecticut Valley-Gaspe basin in northwestern Maine and the Gaspe Peninsula of Quebec received sediment from both northwestern and southeastern sources (McWilliams et al.
modes in the Makran accretionary wedge, southwest Pakistan: Implications for tectonic setting and long-distance turbidite transportation.
These relatively higher susceptibilities are mostly carried by secondary Fe-Ti oxides (within the Saka Member), goethite ooids (Kandle Formation) and ferrous dolomite (Pae Member), whereas paramagnetic minerals and rare ferromagnetic detrital
grains are responsible for the higher susceptibilities throughout the rest of the studied sequence.
Gradual increase in IS and smectite toward Upper Cretaceous can indicate to the presence of prevailing conditions for detrital
origin and absence of deep burial diagenesis in the KD basin.
These results evidence that the influence of inherited zircons is stronger in the trondhjemitic plutons since, for instance, the age of 517 Ma obtained for the Cachi trondhjemite is closer to published ages of detrital
zircons from the Puncoviscana Formation than to the crystallization of the plutons.
Based on the composition of the detrital
constituents in the Siwalik Group sandstones, this study is aimed to reconstruct the sediment provenance as well as to understand the tectonic evolution and climatic setting during the deposition of the Group.