Results 61 to 70 of about 2,097 (200)
The diversity of organisms inhabiting deep-sea ecosystems, such as seamounts, has hitherto remained under-studied. In this study, we report on the faunal diversity in the water column adjacent to the summit and periphery of two seamounts (SMS2 and SMS3 ...
Devika Raj Kaliyath +4 more
doaj +1 more source
oceandatr: An R Package to Acquire and Process Geospatial Ocean Data
We introduce the oceandatr R package, an interface that provides functions for acquiring and processing marine data sources—including bathymetry, geomorphology, ecological, and human use data—and returns these in several grid‐based formats. We outline uses of oceandatr, such as modeling and spatial analysis, and present two case studies where oceandatr
Jason Flower +7 more
wiley +1 more source
Little Evidence of Benthic Community Resilience to Bottom Trawling on Seamounts After 15 Years
The resilience and recovery dynamics of deep-sea habitats impacted by bottom trawling are poorly known. This paper reports on a fishing impact recovery comparison based on four towed camera surveys over a 15-year period (2001–2015) on a group of small ...
Malcolm R. Clark +4 more
doaj +1 more source
Exhumed eo‐Alpine High‐Pressure Rocks Fed Campanian Turbidites in Eastern Sardinia
Abstract This study investigates the detrital record of the early orogenic evolution of the Sardinia‐Calabria system, preserved in Upper Cretaceous arenites exposed in eastern Sardinia. Sardinia and Corsica form a continental block that includes a segment of the Alpine orogen and of its former foreland basin.
Francesco Massari +5 more
wiley +1 more source
The Global Seamount Census [PDF]
Seamounts are active or extinct undersea volcanoes with heights exceeding ~ 100 m. They represent a small but significant fraction of the volcanic extrusive budget for oceanic seafloor and their distribution gives information about spatial and temporal ...
Paul Wessel +2 more
doaj
Surveys of seamounts in the Southern Indian Ocean were carried out during the 37th and 38th Japanese Antarctic Research Expedition (JARE-37 and JARE-38). Previous uncharted seamounts were identified on board the icebreaker SHIRASE.
Yoshifumi Nogi +2 more
doaj +1 more source
Abstract This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma. The San Lucas, Catamayo, Portachuela, and Gonzanamá batholiths and magmatic suites, along with Late Miocene plutons, display ...
J. Iglesias +14 more
wiley +1 more source
Intraplate Seamounts as a Window into Deep Earth Processes [PDF]
Seamounts are windows into the deep Earth that are helping to elucidate various deep Earth processes. For example, thermal and mechanical properties of oceanic lithosphere can be deter-mined from the flexing of oceanic crust caused by the growth of ...
Anthony A.P. Koppers, Anthony B. Watts
doaj
Constraining the Permeability and Outer‐Rise Hydration at the Central America Margin
Abstract Subduction zones are important drivers of Earth's geochemical evolution; the presence of water within the subduction system has substantial implications for geohazards, including the style of seismicity and the volume of magma generated at arc volcanoes.
D. Douglas +3 more
wiley +1 more source
Abstract Only one quarter of the global ocean floor has been directly surveyed; the remaining three quarters are inferred from satellite altimeter‐derived gravity data using techniques developed in the 1990s. These classical methods correlate gravity anomalies with known depths and extrapolate bathymetry in unsounded regions.
David Sandwell +13 more
wiley +1 more source

