Results 81 to 90 of about 1,610 (241)

The dependence of seafloor roughness on spreading rate

Geophysical Research Letters, 1991
Bathymetric profiles taken parallel to flowlines across the mid‐ocean ridges of the South Atlantic and South Pacific strongly suggest an approximate linear relationship (slope 30–50 m cm−1 yr) between the RMS amplitude roughness of small scale features and spreading rate. This relationship is best demonstrated for spreading half rates <35 mm/yr. The
Dennis E. Hayes, Kimberlee A. Kane
openaire   +1 more source

Hydration in the Crust and Upper Mantle Near the Extinct Spreading Ridge in the Eastern Sub‐Basin, South China Sea

Geophysical Research Letters
During the final stages of seafloor spreading in the East Sub‐basin of the South China Sea, spreading transitioned from slow to ultraslow before cessation.
Hui Jiang, Haibo Huang, Enyuan He, Jian Guo, Xuelin Qiu   +4 more
doaj   +1 more source

Comparison of the spatial location of deep-sea polymetallic sulphide ore objects and deep mantle structure based on geophysical fields in the northern near-equatorial segment of the Mid-Atlantic Ridge

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
A comparison of geophysical data along the segment of the Mid-Atlantic Ridge (MAR) between 10° N and 25° N and seafloor massive sulfides (SMS) ore objects revealed a number of regularities and relationships in their spatial distribution.
S.Yu. Sokolov, A.S. Bich
doaj   +1 more source

Seafloor Spreading Falsification

Symmetrical seafloor spreading is impossible on a rotating surface.
openaire   +2 more sources

Tectono‐Magmatic Processes of the Western Parece Vela Basin: Insights Derived From Seismic Imaging and Gravity Modeling

Geochemistry, Geophysics, Geosystems
The western Parece Vela Basin (PVB) contains three distinct geomorphological zones aligned with the seafloor spreading direction: the west abyssal hill zone, the central Chaotic Terrain zone, and the east abyssal hill zone.
Changliang Chen, Pin Yan, Weidong Luo, Yufang Tan, Junhui Yu, Yanlin Wang, Xubo Zhang, Zhanying Chen, Wenkai Huang, Jiale Chen   +9 more
doaj   +1 more source

From Symmetric Rifting to Asymmetric Spreading—Insights Into Back‐Arc Formation in the Central Mariana Trough

Geochemistry, Geophysics, Geosystems
The Mariana Trough is the youngest back‐arc basin in a series of basins and arcs that developed behind the Mariana subduction zone in the western Pacific.
H.‐S. Hilbert, A. Dannowski, I. Grevemeyer, C. Berndt, S. Kodaira, G. Fujie, N. Takahashi   +6 more
doaj   +1 more source

Evolution of Coupled Seismic‐Aseismic Slip During the 2025 Mw 6.8 Sanriku‐Oki, Japan, Megathrust Sequence

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract On 9 November 2025, a Mw 6.8 Sanriku‐Oki earthquake struck a Japan Trench segment with inferred recurrent aseismic slip and Mw ∼7 earthquakes. Using S‐net seafloor data, we examine the preparatory and post‐mainshock evolution of this foreshock–mainshock–aftershock sequence.
Keisuke Yoshida
wiley   +1 more source

Tracing methane sources in shallow waters of the North Sea: Biogenic signatures and hydrocarbon transport near abandoned wells

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Numerous abandoned wells in the North Sea may provide gas, particularly methane (CH4), migration pathways by penetrating shallow, biogenic gas accumulations. However, related sampling campaigns have been largely contradictory and lack a substantial database. Research cruise MSM98 targeted the abandoned wells B18‐1, DOK 1‐X, B11‐2, THOR and D‐1
Katja U. Heeschen, Stefan Schloemer, Robert Kopte, Miriam Römer, Martin Blumenberg   +4 more
wiley   +1 more source

Abundant interactions and feedbacks between aquatic deoxygenation and the other planetary boundaries suggest “unsafe” levels of oxygen loss with far‐reaching impacts

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Oxygen is critical for nearly all life on Earth, including aquatic species that breathe dissolved oxygen in both freshwater and marine systems. The rapid, global, and anthropogenic loss of dissolved oxygen known as “aquatic deoxygenation” threatens life in these environments, the human communities that depend on them, and Earth system ...
Erica M. Ferrer, Yassir A. Eddebbar, Shailja Gangrade, Lillian R. McCormick, Ariel K. Pezner, De'Marcus Robinson, Véronique Garçon, Kevin C. Rose, Lisa A. Levin   +8 more
wiley   +1 more source

Warm Surface Waters Dominate Melting of the Denman‐Shackleton Ice Shelf System

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The ocean dynamics controlling the melting of the Denman‐Shackleton ice shelf system are investigated using a high‐resolution regional ocean‐sea ice‐ice shelf model. Our results show that basal meltwater production exhibits strong seasonal variability, driven by the ocean heat supply toward the ice shelf system, and occurs through two distinct
Yuhang Liu, Maxim Nikurashin, Beatriz Peña‐Molino, Paul Spence, Laura Herraiz‐Borreguero   +4 more
wiley   +1 more source