Results 171 to 180 of about 27,244 (313)

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

open access: yesSedimentology, EarlyView.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee   +2 more
wiley   +1 more source

Microplastic Dynamics in Sediment Layers of Two Ramsar‐Designated Wetlands

open access: yesWater and Environment Journal, EarlyView.
ABSTRACT Little is known about the vertical and spatial dynamics of microplastics in relation to hydrology and land use, particularly in African context. This study aimed to assess the abundance, type, colour and vertical distribution of microplastics in sediment from two Ramsar‐designated wetlands, the Makuleke and Nylsvley. Sediment core samples were
Nelisiwe Ngomane   +7 more
wiley   +1 more source

Lacustrine Lessons (1985-05 and 06)

open access: yes, 1985
Minnesota Sea Grant Extension Program. (1985). Lacustrine Lessons (1985-05 and 06).
Minnesota Sea Grant Extension Program
core  

Lacustrine Lessons (1987-01 and 03)

open access: yes, 1987
Minnesota Sea Grant Extension Program. (1987). Lacustrine Lessons (1987-01 and 03).
Minnesota Sea Grant Extension Program
core  

Lacustrine Lessons (1980-11 and 12)

open access: yes, 1980
Minnesota Sea Grant Extension Program. (1980). Lacustrine Lessons (1980-11 and 12).
Minnesota Sea Grant Extension Program
core  

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