It's material found in bottom sediment or in the water column of a body of water that was precipitated out of stuff in the water, ie. hydrogenous material does not come from a terrestrial, cosmic or biological source.
Calcareous ooze
Hydrogenous sediments form when minerals precipitate directly from seawater as a result of chemical reactions or biological processes. For example, manganese nodules and phosphorite deposits are examples of hydrogenous sediments that form in this way in the deep sea. These sediments accumulate slowly over time on the ocean floor.
minerals that crystalize directly from ocean waters
All hydrogenous sediments are formed from the precipitation of minerals directly from seawater. They typically consist of chemical compounds that crystallize out as a result of changes in water chemistry, temperature, or biological activity. Common examples include manganese nodules, phosphorites, and carbonates. These sediments often accumulate in specific marine environments, reflecting the local geochemical conditions.
Marine sediments are typically classified into four main classes: terrigenous, biogenous, hydrogenous, and cosmogenous. Terrigenous sediments originate from land, consisting of eroded rocks and soil transported by rivers and wind. Biogenous sediments are derived from biological materials, primarily the remains of marine organisms like foraminifera and diatoms. Hydrogenous sediments form directly from the precipitation of minerals from seawater, while cosmogenous sediments come from extraterrestrial sources, such as meteorites.
Hydrogenous sediments are formed when minerals precipitate from the ocean, or they can be formed when minerals in the water react with older sediments.
Calcareous ooze
not a hydrogenous sediment?
The three types of ocean floor sediments are Terrigenous, Biogenous, and Hydrogenous sediments.
Hydrogenous sediments form when minerals precipitate directly from seawater as a result of chemical reactions or biological processes. For example, manganese nodules and phosphorite deposits are examples of hydrogenous sediments that form in this way in the deep sea. These sediments accumulate slowly over time on the ocean floor.
minerals that crystalize directly from ocean waters
Manganese nodules are an example of hydrogenous sediment, which forms directly from ocean water through chemical precipitation. They are typically found on the deep ocean floor.
hydrogenous
Calcium oxide.
The three types of ocean floor sediments are Terrigenous, Biogenous, and Hydrogenous sediments.
minerals that crystallize directly from ocean waters
Manganese nodules are polymetallic concretions found on the ocean floor and are formed through a slow process of precipitation and accumulation of manganese and other metals. They are a type of sediment known as hydrogenous sediment, as they form directly from seawater and not from the breakdown of rocks or organic materials.