Ask-a-Geologist #10: What Are The Remains Of Once Living Organisms Found In Sedimentary Rocks?

Fossils are the remains or impressions of once living organisms that you can find in sedimentary rocks. There are two basic types of fossils that geologists and paleontologists talk about. These are body fossils and trace fossils. Body fossils are a real body part of an animal such as a dinosaur bone or a shark tooth. A trace fossil is something that shows evidence that something was there such as tracks, burrows, trails, molds, casts, and impressions.

Ask-A-Geologist Question #9: What grains are in conglomerate rocks?

Hi everyone! Today I’m here to answer another fabulous question from one of our readers. Today’s question is about the sedimentary rock conglomerate. Matthew asks: What grains are in conglomerate rocks?

What Would You Do With A Limestone Rock?

Limestone is another very popular rock here at Mini Me Geology.

Do You Have a Sandstone or a Quartzite?

Quartzites are metamorphic rocks that were once quartz sandstones.

What Would You Do With A Sandstone Rock?

Sandstone is one of the most popular rocks here at Mini Me Geology.

Do you know Sandstone?

Sandstone forms from beach sand-sized quartz grains that are glued together with quartz or calcite or compressed until they harden into a rock.

Conglomerate Sedimentary Rock Q&A

Here is another great question we received through our Ask-a-Geologist email. Question: What grains are in conglomerate rocks?

Our Most Popular Ask-a-Geologist Question…..EVER!

This has to be the most-asked question we receive here at Mini Me Geology. Question: What are the hollow ball-like objects, such as quartz, which are found in sedimentary rocks?

Arkose – Beautiful Sedimentary Rock

Arkose is a beautiful sedimentary rock that is typically gray, pink or red. This coarse-grained rock forms when igneous rocks break apart and the pieces travel to a river, lake or ocean.

Loess – the Earth’s most fragile rock!

Loess is formed from fine (small) grained, windblown sediment in glacier or desert areas. Loess is made of mostly silt but may also have some small amounts of sand and clay. The major mineral present is quartz with minor amounts of feldspar, calcite, dolomite, and clay.