Results 21 to 30 of about 100,826 (267)

FIRST EVIDENCE OF COLOR PATTERNS ON CONCHS OF THE LOWER MOSCOVIAN (MIDDLE PENNSYLVANIAN) COILED NAUTILOIDS FROM THE DONETS BASIN, UKRAINE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2023
New finds of well-preserved remains of coiled nautiloids from lower Moscovian sediments (Kamenskaya Formation) of the Donets Basin (eastern Ukraine) allowed to describe the color pattern on the conch surface of species of the genera Parametacoceras ...
Vitaly Dernov
doaj   +1 more source

A Classification Scheme for Sediments and Habitats on Exposed Intertidal Flats with Multi-Frequency Polarimetric SAR

open access: yesRemote Sensing, 2021
We developed an extension of a previously proposed classification scheme that is based upon Freeman–Durden and Cloude–Pottier decompositions of polarimetric Synthetic Aperture Radar (SAR) data, along with a Double-Bounce Eigenvalue Relative Difference ...
Wensheng Wang   +5 more
doaj   +1 more source

Diversity and abundance of diatoms (Bacillariophyceae) in sediments of the south coast of Iran [PDF]

open access: yesبوم‌شناسی آبزیان, 2018
In this stud, the diversity and abundance of benthic diatoms were evaluated in 9 stations located in Persian Gulf (Sirik) and Oman Sea (Gwatar, Abshirinkon) in winter and spring of 1394 -1395.
Gilan Attaran Fariman   +2 more
doaj  

Analysis of orientation errors in triaxial fluxgate sensors and research on their calibration methods [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems
Three-axis magnetic flux gate sensors are widely used in Chinese geomagnetic observatories, but due to their directional errors it is necessary to study error correction methods to improve measurement accuracy.
X. Hu   +11 more
doaj   +1 more source

Overturned Eocene – Lower Pliocene alluvial stratum on the southern coast of Lake Baikal and its neotectonic significance

open access: yesГеодинамика и тектонофизика, 2021
The study is focused on a section of sediments exposed on the right bank of Mishikha River, Russia. These sediments have a wide range of ages, from the Eocene to the Lower Pliocene.
A. Al Hamoud   +8 more
doaj   +1 more source

UNDERWATER CANYONS OF THE SOUTHWESTERN OUTSKIRTS OF SOUTHERN BAIKAL AS PRESUMABLE TRANSITERS OF TECHNOGENIC MATERIALS TO THE ABYSSAL SURFACE

open access: yesГеодинамика и тектонофизика, 2023
Numerous publications by domestic and foreign authors deal with a significant role of underwater canyons in transit of loose material from the littoral to the abyssal surfaces of the seas. Lake Baikal fully corresponds in its hydrodynamic and bathymetric
E. E. Kononov, N. A. Gubin
doaj   +1 more source

Quantitative study on the characteristics of dynamic vehicle interference to geomagnetic field

open access: yes地震科学进展
In recent years, geomagnetic observation stations have been subjected to more and more serious interference by HVDC transmission, subway, vehicles, etc.
Qin Tian   +4 more
doaj   +1 more source

Analysis of temperature variation characteristics in relative recording rooms of geomagnetic reference stations

open access: yes地震科学进展
The variation of temperature in the geomagnetic relative recording room can cause deviations in the relative recording data, thereby affecting the geomagnetic baseline value.
Shaopeng He   +3 more
doaj   +1 more source

Analysis of the operation and maintenance of unmanned fluid stations

open access: yes地震科学进展
Unmanned fluid stations are a critical component of China’s earthquake monitoring system for observing regional geophysical fields. The stable operation and data quality of these stations are significant for regional short-term and imminent earthquake ...
Qin Tian, Jing Wang, Zhen Xie
doaj   +1 more source

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