995200100 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 995200200 - Statement - Condensed Consolidated Statements of Loss and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 995200400 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 99940801 - Disclosure - Exploration and Evaluation Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 99941001 - Disclosure - Accounts Payable and Accrued Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 99941801 - Disclosure - Fair Value Accounting (Details) link:presentationLink link:calculationLink link:definitionLink 995200090 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 995200105 - Statement - Condensed Consolidated Balance Sheets (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 995200300 - Statement - Condensed Consolidated Statements of Changes in Equity link:presentationLink link:calculationLink link:definitionLink 995211401 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 99920202 - Disclosure - Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 99930803 - Disclosure - Exploration and Evaluation Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 99931303 - Disclosure - Warrants (Tables) link:presentationLink link:calculationLink link:definitionLink 99931403 - Disclosure - Share-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 99931903 - Disclosure - Segmented Information (Tables) link:presentationLink link:calculationLink link:definitionLink 99940101 - Disclosure - Nature of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 99940601 - Disclosure - Strategic Alliance with Allseas and Affiliates - Development of Project Zero Offshore Nodule Collection System (Details) link:presentationLink link:calculationLink link:definitionLink 99940604 - Disclosure - Strategic Alliance with Allseas and Affiliates - Credit Facility with Allseas Affiliate (Details) link:presentationLink link:calculationLink link:definitionLink 99940701 - Disclosure - Investment in Low Carbon Royalties (Details) link:presentationLink link:calculationLink link:definitionLink 99940704 - Disclosure - Investment in Low Carbon Royalties - Financial Results Of Low Carbon Royalties (Details) link:presentationLink link:calculationLink link:definitionLink 99940901 - Disclosure - General and Administrative Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 99941101 - Disclosure - Financing Activity - Registered Direct Offering (Details) link:presentationLink link:calculationLink link:definitionLink 99941201 - Disclosure - Shares issued as per At-the-Market Equity Distribution Agreement ("ATM") (Details) link:presentationLink link:calculationLink link:definitionLink 99941301 - Disclosure - Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 99941302 - Disclosure - Warrants - Fair value of warrant liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 99941303 - Disclosure - Warrants - Fair value measurements assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 99941304 - Disclosure - Warrants - Class of warrants (Details) link:presentationLink link:calculationLink link:definitionLink 99941305 - Disclosure - Warrants - Class A Warrants, Class B Warrants and Class C warrants (Details) link:presentationLink link:calculationLink link:definitionLink 99941306 - Disclosure - Warrants - Fair value measurements assumptions of the warrants (Details) link:presentationLink link:calculationLink link:definitionLink 99941401 - Disclosure - Share-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 99941402 - Disclosure - Share-Based Compensation - Summarizing the movements in stock options (Details) link:presentationLink link:calculationLink link:definitionLink 99941403 - Disclosure - Share-Based Compensation - Valuation assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 99941404 - Disclosure - Share-Based Compensation - Summary of the RSU activity (Details) link:presentationLink link:calculationLink link:definitionLink 99941405 - Disclosure - Share-Based Compensation - Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 99941406 - Disclosure - Share-Based Compensation - Fair value of each tranche and derived service (Details) link:presentationLink link:calculationLink link:definitionLink 99941407 - Disclosure - Share-Based Compensation - Employee Stock Purchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 99941501 - Disclosure - Loss per Share - Anti-dilutive common equivalent shares (Details) link:presentationLink link:calculationLink link:definitionLink 99941601 - Disclosure - Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 99941701 - Disclosure - Contingent Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 99941901 - Disclosure - Segmented Information (Details) link:presentationLink link:calculationLink link:definitionLink 995210101 - Disclosure - Nature of Operations link:presentationLink link:calculationLink link:definitionLink 995210201 - Disclosure - Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 995210301 - Disclosure - Use of Estimates link:presentationLink link:calculationLink link:definitionLink 995210401 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 995210501 - Disclosure - Recent Accounting Pronouncements Issued and Adopted link:presentationLink link:calculationLink link:definitionLink 995210601 - Disclosure - Strategic Alliance with Allseas and Affiliates link:presentationLink link:calculationLink link:definitionLink 995210701 - Disclosure - Investment in Low Carbon Royalties link:presentationLink link:calculationLink link:definitionLink 995210801 - Disclosure - Exploration and Evaluation Expenses link:presentationLink link:calculationLink link:definitionLink 995210901 - Disclosure - General and Administrative Expenses link:presentationLink link:calculationLink link:definitionLink 995211001 - Disclosure - Accounts Payable and Accrued Liabilities link:presentationLink link:calculationLink link:definitionLink 995211101 - Disclosure - Financing Activity link:presentationLink link:calculationLink link:definitionLink 995211201 - Disclosure - Shares issued as per At-the-Market Equity Distribution Agreement ("ATM") link:presentationLink link:calculationLink link:definitionLink 995211301 - Disclosure - Warrants link:presentationLink link:calculationLink link:definitionLink 995211501 - Disclosure - Loss per Share link:presentationLink link:calculationLink link:definitionLink 995211601 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 995211701 - Disclosure - Contingent Liabilities link:presentationLink link:calculationLink link:definitionLink 995211801 - Disclosure - Fair Value Accounting link:presentationLink link:calculationLink link:definitionLink 995211901 - Disclosure - Segmented Information link:presentationLink link:calculationLink link:definitionLink 99930603 - Disclosure - Strategic Alliance with Allseas and Affiliates (Tables) link:presentationLink link:calculationLink link:definitionLink 99930703 - Disclosure - Investment in Low Carbon Royalties (Tables) link:presentationLink link:calculationLink link:definitionLink 99930903 - Disclosure - General and Administrative Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 99931003 - Disclosure - Accounts Payable and Accrued Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 99931503 - Disclosure - Loss per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 99931803 - Disclosure - Fair Value Accounting (Tables) link:presentationLink link:calculationLink link:definitionLink 99940401 - Disclosure - Fair Value of Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 99940602 - Disclosure - Strategic Alliance with Allseas and Affiliates - Exclusive Vessel Use Agreement with Allseas (Details) link:presentationLink link:calculationLink link:definitionLink 99940603 - Disclosure - Strategic Alliance with Allseas and Affiliates - Net Amount Of The Right-Of-Use Asset (Details) link:presentationLink link:calculationLink link:definitionLink 99940702 - Disclosure - Investment in Low Carbon Royalties - Company's share of the net loss generated by Low Carbon Royalties (Details) link:presentationLink link:calculationLink link:definitionLink 99940703 - Disclosure - Investment in Low Carbon Royalties - Fair value of the royalty liability (Details) link:presentationLink link:calculationLink link:definitionLink 99900 - Disclosure - Standard And Custom Axis Domain Defaults link:presentationLink link:calculationLink link:definitionLink