- The
Proterozoic (IPA: /ˌproʊtərəˈzoʊɪk, ˌprɒt-, -əroʊ-, -trə-, -troʊ-/ PROH-tər-ə-ZOH-ik, PROT-, -ər-oh-, -trə-, -troh-) is the
third of the four geologic...
- unit of
geologic time,
subdivided into
three eons (Hadean, Archean,
Proterozoic) of the
geologic time scale. It
spans from the
formation of
Earth about...
- The
Neoproterozoic Era is the last of the
three geologic eras of the
Proterozoic eon,
spanning from 1
billion to 538.8
million years ago, and is the last...
- "Meso".
Collins English Dictionary. HarperCollins.
Retrieved 2023-08-30. "
Proterozoic". Merriam-Webster.com Dictionary. Merriam-Webster.
There are several...
-
Anorthosite on
Earth can be
divided into five types:
Archean anorthosites Proterozoic anorthosite (also
known as m****if or m****if-type anorthosite) – the most...
- the
planet and
ended 4.0
billion years ago. The
following Archean and
Proterozoic eons
produced the
beginnings of life on
Earth and its
earliest evolution...
-
sequences with ****ociated
sedimentary rocks that
occur within Archaean and
Proterozoic cratons between granite and
gneiss bodies. The name
comes from the green...
-
covers the
geological development of the
continent through the Archean,
Proterozoic and
Phanerozoic eons. The
geological study of
Antarctica has been greatly...
- into
three geological time
intervals called eons: Hadean,
Archaean and
Proterozoic. The
latter two are sub-divided into
several eras as
currently defined...
-
batholith magma intruded into the pre-existing mica
schist rocks during the
Proterozoic, 1.6
billion years ago. Co****
grained pegmatite ****s are ****ociated...
