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      <marc:subfield code="a">Geological Survey of Canada.</marc:subfield>
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      <marc:subfield code="a">Free air gravity anomaly map of Baffin Bay and Davis Strait between 78°N and 62°N.</marc:subfield>
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      <marc:subfield code="a">"Compiled by S.P. Srivastava."</marc:subfield>
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      <marc:subfield code="a">"The gravity values shown here are referenced to the International Gravity Standardisation Net 1971 (IGSN 71) datum and free air anomalies were calculated by subtracting the theoretical values based on the Geodetic Reference System 1967 (GRS 67) formula from the observed values. The map is on a Lambert Conformal Projection with standard parallels of 49°N and 77°N at a scale of 1 million."</marc:subfield>
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      <marc:subfield code="a">Cartes géologiques</marc:subfield>
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      <marc:subfield code="a">Cartes géographiques numériques</marc:subfield>
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      <marc:subfield code="a">Srivastava, S. P. </marc:subfield>
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      <marc:subfield code="a">Open file (Geological Survey of Canada)</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2026/rncan-nrcan/m183-2/M183-2-839-2-eng.pdf</marc:subfield>
      <marc:subfield code="z">Sheet 2</marc:subfield>
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      <marc:subfield code="u">https://doi.org/10.4095/129651</marc:subfield>
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