Critical instrumentation for the study of geological, chemical and biological processes in marine sediments in Eastern Canada

研究加拿大东部海洋沉积物地质、化学和生物过程的关键仪器

• 批准号: RTI-2023-00208
• 负责人: Pellerin, Andre
• 金额: $ 10.93万
• 依托单位: Université du Québec à Rimouski
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=765288
• 关键词: Critical; instrumentation; study; geological; chemical

The fleet of corers we request is urgently needed to enhance and to replace, our ageing and broken or lost coring equipment that are deployed in the St. Lawrence and the Arctic. UQAR and its nonprofit organization, REFORMAR, manage research vessels for the Canadian scientific community (R/V Coriolis II, Lampsillis, Louis-Edmond-Hamelin,) which provides access to the St. Lawrence seaway. These ships are suitable for deploying the coring suite requested. In the Arctic, where most of the team members have NSERC-DG grants, the CCGS Amundsen is used for scientific research with the capacity to deploy the proposed corers. These research ships are the most (if not the only) cost-effective way for Canadian researchers to develop research projects requiring seafloor samples in the St. Lawrence and the Arctic. The ISMER-UQAR coring suite was used extensively over the past 20 years by the Canadian community. Most instruments now show signs of advanced wear and are becoming increasingly ineffective to collect sediments. Historically, in addition to the extensive use by ISMER-UQAR, the coring equipment was used for the research programs of several researchers from McGill, U. Laval, INRS-ETE, Concordia U. and UQAM, as well as by provincial and federal ministries (e.g., Fisheries and Oceans Canada, Geological Survey Canada, Environment Canada). From 2001-2021, the equipment was used by 437 researchers to recover samples for over 110 scientific expeditions at sea (842 days at sea) and used in the training of 1593 HQP. Now, our box corer, the most highly used of our corers for recent sediment and benthic fauna needs urgent replacement as it was lost at sea. Furthermore, we are lacking the means of sampling near the surface-water interface for benthic biology and biogeochemistry. We seek funding to diversify our coring suite including box corer, hammer corer, multi-corer and vibrocorer. The box, hammer and multi corer will provide enhanced and more precise access to samples from the sediment-water interface. The vibrocorer can penetrate consolidated or coarser sediments and thus allows us to access the sedimentary records of sandy or consolidated layers. The hammer corer is ideal for shallow water work aboard a small boat, which can lower operational costs. Together, this suite allows full integration of sediment sampling that opens the door to new projects and boosts innovation. We also request funds for a multi-corer, a vibrocorer and a small portable hammer corer. A large portion of Canadian oceanography research relies on this equipment in order to retrieve the sediments needed for geological, biological and geochemical oceanography in the Arctic and the St. Lawrence. To grant broad access to the equipment, we maintain a pool of instruments accessible by all Canadian researchers and readily available to any potential users. This guarantees that the equipment is available to all regardless of personal background.

我们迫切需要我们要求的取芯机队来加强和更换我们部署在圣劳伦斯和北极地区的老化、损坏或丢失的取心设备。UQAR及其非营利组织REFORMAR为加拿大科学界(R/V Coriolis II，Lampsillis，Louis-Edmond-Hamelin)管理考察船，后者提供通往圣劳伦斯海道的通道。这些船适合部署所需的取心套件。在北极，大多数团队成员都有NSERC-DG赠款，CCGS Amundsen用于科学研究，有能力部署拟议的Corers。对于加拿大研究人员来说，这些考察船是开发需要圣劳伦斯和北极海底样本的研究项目的最具成本效益的(如果不是唯一的)方法。在过去的20年里，ISMER-UQAR取心套件被加拿大社区广泛使用。大多数仪器现在都显示出高级磨损的迹象，收集沉积物的效率越来越低。从历史上看，除了ISMER-UQAR的广泛使用外，取心设备还被McGill、U Laval、INRS-ETE、Concordia U和UQAM的几名研究人员以及省和联邦部委(如加拿大渔业和海洋部、加拿大地质调查局、加拿大环境部)用于研究项目。从2001年至2021年，437名研究人员使用该设备为110多次海上科学考察(海上842天)回收样本，并用于培训1593名HQP。现在，我们的盒子取样器，最常用的最近沉积物和底栖动物的取心器，由于在海上丢失，需要紧急更换。此外，我们缺乏在地表水界面附近进行底栖生物生物学和生物地球化学采样的手段。我们寻求资金，以使我们的取芯套件多样化，包括盒式取样器、锤式取样器、多取心器和可控震源取心器。盒子、锤子和多个取样器将提供改进的、更精确的从沉积物-水界面获取样品的途径。可控震源可以穿透固结或较粗的沉积物，从而使我们能够获得砂质或固结地层的沉积记录。锤式取样器是在小船上进行浅水作业的理想选择，可以降低作业成本。总而言之，该套件允许完全集成沉积物采样，从而打开了新项目的大门，并促进了创新。我们还要求提供资金购买一台多功能取芯机、一台可控震源取样机和一台小型便携式锤式取心机。加拿大海洋学研究的很大一部分依赖于这种设备，以便提取北极和圣劳伦斯海峡地质、生物和地球化学海洋学所需的沉积物。为了允许广泛使用设备，我们保留了一个仪器池，所有加拿大研究人员都可以使用，任何潜在用户都可以随时使用。这保证了所有人都可以使用这些设备，而不考虑个人背景。