Modified Gravity Corer: Advantages and Offshore Testing

IF 1.3 4区地球科学 Q4 OCEANOGRAPHY

Oceanology Pub Date : 2024-08-26 DOI:10.1134/s0001437024700292

A. N. Kolesnik, O. N. Kolesnik, S. A. Selyutin, A. A. Bosin, A. S. Astakhov

引用次数: 0

Abstract

A modified gravity corer (MGC) for more efficient and high-quality sediment core sampling is considered. Such design elements as the core catcher, section muff joints, the weight, and loop have been modified; the crown and locking plate have been removed. As a result of comparative testing in the South Chukchi Basin of the Chukchi Sea, it is shown that the MGC sampled 30% longer cores than the standard gravity corer (SGC). Judging from the distribution of such a redox-sensitive element as iron in the cores, when the MGС is used, a surface oxidized film remains in sediments. Thus, the disturbance of properties and textures/structures of sediments under sampling is the lowest.

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改良型重力取样器：优势与海上测试

摘要研究了一种改进型重力岩心取样器（MGC），以提高沉积物岩心取样的效率和质量。对岩心捕捉器、断面马弗接头、配重和环等设计元素进行了修改；去掉了冠和锁定板。在楚科奇海南楚科奇盆地进行的对比测试表明，MGC 取样的岩芯长度比标准重力取样器（SGC）长 30%。从岩心中铁这种氧化还原敏感元素的分布情况来看，使用 MGС 时，沉积物中会残留一层表面氧化膜。因此，取样时对沉积物性质和纹理/结构的干扰最小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Oceanology 地学-海洋学

CiteScore

2.00

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Oceanology, founded in 1961, is the leading journal in all areas of the marine sciences. It publishes original papers in all fields of theoretical and experimental research in physical, chemical, biological, geological, and technical oceanology. The journal also offers reviews and information about conferences, symposia, cruises, and other events of interest to the oceanographic community.