Marine sediments that are used in estimating the past ocean temperatures are primarily calcareous ooze and siliceous ooze.

1. Calcareous Ooze: This type of marine sediment is composed primarily of the calcium carbonate shells of tiny marine plants and animals such as foraminifera and coccolithophores. These organisms thrive in warm, nutrient-rich surface waters. When they die, their shells sink and accumulate on the ocean floor. The ratio of oxygen isotopes in these shells can provide information about past ocean temperatures.

2. Siliceous Ooze: This sediment is composed primarily of the silica-based shells of diatoms and radiolarians. Like calcareous ooze, the composition of siliceous ooze can also provide information about past ocean temperatures.

Biogenous ooze, which is a category that includes both calcareous and siliceous ooze, is also used in paleoceanography studies. Manganese nodules and cosmogenous ooze, on the other hand, are not typically used to estimate past ocean temperatures.

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Marine sediments that are used in estimating the past ocean temperatures are primarily calcareous ooze and siliceous ooze.

1. Calcareous Ooze: This type of marine sediment is composed primarily of the calcium carbonate shells of tiny marine plants and animals such as foraminifera and coccolithophores. These organisms thrive in warm, nutrient-rich surface waters. When they die, their shells sink and accumulate on the ocean floor. The ratio of oxygen isotopes in these shells can provide information about past ocean temperatures.

2. Siliceous Ooze: This sediment is composed primarily of the silica-based shells of diatoms and radiolarians. Like calcareous ooze, the composition of siliceous ooze can also provide information about past ocean temperatures.

Biogenous ooze, which is a category that includes both calcareous and siliceous ooze, is also used in paleoceanography studies. Manganese nodules and cosmogenous ooze, on the other hand, are not typically used to estimate past ocean temperatures.

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Marine sediments that are used in estimating the past ocean temperatures are primarily calcareous ooze and siliceous ooze.

1. Calcareous Ooze: This type of marine sediment is composed primarily of the calcium carbonate shells of tiny marine plants and animals such as foraminifera and coccolithophores. These organisms thrive in warm, nutrient-rich surface waters. When they die, their shells sink and accumulate on the ocean floor. The ratio of oxygen isotopes in these shells can provide information about past ocean temperatures.

2. Siliceous Ooze: This sediment is composed primarily of the silica-based shells of diatoms and radiolarians. Like calcareous ooze, the composition of siliceous ooze can also provide information about past ocean temperatures.

Biogenous ooze, which is a category that includes both calcareous and siliceous ooze, is also used in paleoceanography studies. Manganese nodules and cosmogenous ooze, on the other hand, are not typically used to estimate past ocean temperatures.

What marine sediments are used in estimating the past ocean temperatures?Group of answer choicescalcareous oozemanganese nodulessiliceous oozebiogeneous oozecosmogenous ooze

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