Detrital subsidies from marine macrophytes are prevalent in temperate estuaries, and their role in structuring benthic macrofaunal communities is well documented, but the resulting impact on ecosystem function is not understood. We conducted a field experiment to test the effects of detrital decay on soft-sediment primary production, community metabolism and nutrient regeneration (measures of e...

The Southern Highland Group (Dalradian) and Keltie Water Grit Formation, which includes the Lower Cambrian Leny Limestone, form an inverted, 1.4 km thick, largely arenaceous, sequence at Callander. The grits have the same detrital mineralogy throughout, mainly quartz, plagioclase (An1–3), muscovite, and biotite. Chlorite formed from detrital biotite during low-grade regional metamorphism (T<270...

[1] Effects of sediment resuspension-induced benthic detrital flux on the heterotrophic part of the microbial food web in Lake Michigan were examined using a threedimensional (3-D) coupled biological and physical model. The model was driven by the realistic meteorological forcing observed in March 1999. Wind-induced surface wave dynamics were incorporated into the physical model to generate the...

Abstract In this article, novel geochronological (U–Pb SHRIMP) and geochemical data are presented from the lowermost sandstone unit (Par formation), basement granites of Gwalior Basin sandstones Bhopal Basin, located along margins Archaean Bundelkhand Craton. The variation diagrams imply that units in Basins were deposited rift-induced passive margin tectonic settings. contrast to magmatic feat...

Sandstone petrography, zircon and apatite U-Pb geochronology, geochemistry of Early Cretaceous siliciclastic turbidites interbedded with basalt (Chivillas Formation) in the southern Sierra Madre Oriental, Mexico, indicate local provenance from westerly basement sources. Three main detrital populations were observed both geochronology: Meso–Neoproterozoic, Carboniferous–Permian, Cretaceous. Apat...

Diagenetic models for silt-rich mudstone (siltstone) are less advanced than those sandstone and clay-rich mudstone. In addition, the influences of diagenetic processes on reservoir quality in siltstone formations poorly understood. Here we examine roles depositional facies, detrital composition, compositional evolution Lower Triassic Montney Formation, a prominent siltstone-dominated western Ca...

The sources of the Paleocene London Basin marine to fluviodeltaic sandstones are currently unclear. High analysis number detrital zircon U-Pb age investigation an early-mid Thanetian sand from East Kent, reveals a large spread peaks indicative range primary sources. In particular, strong Ediacaran peak is associated with Cadomian Orogeny, while secondary represent Caledonian and various Mesopro...

The Paleo-Asian Ocean controlled the tectonic evolution of Northeast Asia and formed Karamaili Orogenic Belt in eastern Junggar basin. However, chronological constrain paleo-Karamaili remains unclear. In this study, we focused on sandstones Lower Jurassic Badaowan Sangonghe Formations Dongdaohaizi Depression, basin near orogenic belt. After detailed observations descriptions macroscopic feature...

Sediment delivery and supply are explicitly controlled by variations in broad-scale processes such as climate, tectonics eustasy. These turn influence fluvial hinterland evolution. A bespoke multi-proxy approach (integrating apatite zircon U-Pb geochronology, trace elements apatite, Pb-in-K-feldspar provenance tools) coupled with outcrop investigation is used to constrain the temporal trends se...