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6 results for “Equatorial Indian Ocean”
Aridity record of the Arabian Peninsula for the last 200 kyr: environmental magnetic evidence from the western equatorial Indian Ocean
<p><span>The evolution of aridity and its forcing mechanisms in the Arabian Peninsula are of significance for better understanding the environmental response of the region to global change and the impact of past climate shifts in human evolution. Paleoclimatic reconstructions for the region are predominantly derived from fragmentary terrestrial records. Here, we present a detailed environmental magnetic record for marine sediments from the western equatorial Indian Ocean, which constitute the terminal sink for eolian material originated from the Arabian Peninsula.</span></p>
Ocean Gateways and Ocean Circulation Dynamics: Unveiling the Deep Water-Mass properties in the Western Equatorial Pacific and Eastern Indian Ocean since the middle
<p>File contains a dataset related to census counts and stable isotopes that we used to write our manuscript.</p>
Distribution. Throughout the warmest waters of the Indian and Pacific oceans, it has a cross-equatorial distribution occurring from as far N as the Arabian Sea, S India, Japan, and Mexico to as far S as South Africa and Australia; its occurrence appears to be relatively continuous within its distribution; it has not been recorded in the Atlantic Ocean. in Ziphiidae
Distribution. Throughout the warmest waters of the Indian and Pacific oceans, it has a cross-equatorial distribution occurring from as far N as the Arabian Sea, S India, Japan, and Mexico to as far S as South Africa and Australia; its occurrence appears to be relatively continuous within its distribution; it has not been recorded in the Atlantic Ocean.
Relative paleointensity stack during the last 500 ka in the western equatorial Indian Ocean
<p>Relative paleointensity (RPI) records can reflect the evolution of the Earth’s axial dipole field and provide a signal suitable for global stratigraphic correlation. Marine sediments have the potential to preserve continuous records of paleointensity, although with relative variations. Numerous RPI records have been obtained thus far, and global RPI stacks and the axial dipole field model PADM2M that integrate RPI records with absolute paleointensities from volcanic rocks have been proposed. However, current RPI records are mostly from the Atlantic and Pacific Ocean, especially in the mid-latitudes of the Northern Hemisphere, and less RPI records are from the Indian Ocean, in particular of those low latitude areas, which limits the sediment dating and the geomagnetic evolution studies in these regions. Therefore, it is required to make efforts for constructing new RPI records in such areas for global coverage of paleointensity data. We carried out systematic paleomagnetic studies on four sediment cores recovered from the Western Equatorial Indian Ocean (WEIO). Four RPI records were synthesized for the equatorial Indian ocean, which will provide a reference for the establishment of the chronological framework in these areas.</p>
A stacked record of relative paleointensity for the past 500 ka in the western equatorial Indian Ocean
<p>High-quality relative paleointensity (RPI) is important for the study of Earth Interior and sediments dating. Many existing high-resolution RPI curves have been obtained from the North Atlantic and Pacific Ocean. New high-quality relative paleointensity (RPI) stacks are required for other regions, e.g., Indian Ocean, because the geomagnetic field is a global phenomenon. There has been no such stack reported from this region, and it is required to make efforts for constructing a new stack in such areas for global coverage of paleointensity data. A new stack will be useful as a chronology tool because the water depths of some regions are below the calcium carbonate compensation depth and oxygen isotope stratigraphy is usually not applicable. Recent studies have revealed that high-quality RPI records have great potential for a global correlation of marine sediments in the late Pleistocene. In this context, we conducted a paleomagnetic study on 4 sediment cores recovered from the western equatorial Indian Ocean. The purpose is to establish a regional RPI stack during the last 500 ka (WEIO-500) for global coverage of paleointensity data as well as a regional reference for paleointensity-assisted stratigraphy.</p>
A stacked record of relative paleointensity for the past 500 ka in the western equatorial Indian Ocean
<p>High-quality relative paleointensity (RPI) is important for the study of Earth Interior and sediments dating. Many existing high-resolution RPI curves have been obtained from the North Atlantic and Pacific Ocean. New high-quality relative paleointensity (RPI) stacks are required for other regions, e.g., Indian Ocean, because the geomagnetic field is a global phenomenon. There has been no such stack reported from this region, and it is required to make efforts for constructing a new stack in such areas for global coverage of paleointensity data. A new stack will be useful as a chronology tool because the water depths of some regions are below the calcium carbonate compensation depth and oxygen isotope stratigraphy is usually not applicable. Recent studies have revealed that high-quality RPI records have great potential for a global correlation of marine sediments in the late Pleistocene. In this context, we conducted a paleomagnetic study on 4 sediment cores recovered from the western equatorial Indian Ocean. The purpose is to establish a regional RPI stack during the last 500 ka (WEIO-500) for global coverage of paleointensity data as well as a regional reference for paleointensity-assisted stratigraphy.</p>
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