answersLogoWhite

0

Ma in geology means Mega Anum. The M is a standard SI prefix (think giga, mega, kilo, etc.), and anum means year. However, in geology the "a" specifically denotes time before the present. For example, 10 Ma means ten millions years before the present, or ten million years ago. This distinction is important because the symbol Myr is used for a million years, as well ("yr" is the abbreviation for year, similar to "s" for second or "hr" for hour). Using the "yr," however, does not denote relation to the present and instead refers to an arbitrary length of time. For example, the Triassic began about 250 Ma and ended 200 Ma, and it only lasted about 50 Myr. So it began about 250 million years ago (Ma) and lasted for fifty millions years (Myr).

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

What does one Ma on the geological time scale represent?

One million years on the geological time scale represents one million years of Earth's history. It is a unit of time used to measure and discuss long-term geological events and processes.


How many years are in one MA?

One MA, or megaannum, is equivalent to one million years. The term is often used in geological and astronomical contexts to describe long time spans. Thus, when referring to time, 1 MA equals 1,000,000 years.


What is hawaiian term for alive?

ola [oh la] if you mean having life; kamakamaka [kay-ma-ka-ma-ka-] if you mean feeling fresh and alive.


What country does me ma mean grandmother?

"Me ma" is a colloquial term used mainly in Ireland and parts of the United Kingdom to refer to a grandmother.


What are the 4 eras of the geological time?

There have been 4 eons of geological time.Hadean Eon (4576.2 - 4000 Ma)Archean Eon (4,000 - 2,500 Ma)Proterozoic Eon (2,500 - 542 Ma)Phanerozoic Eon (542 Ma - Now)There have been 10 named eras of geological time.Eoarchean Era (4,000 - 3,600 Ma)Paleoarchean Era (3,600 - 3,200 Ma)Mesoarchean Era (3,200 - 2,800 Ma)Neoarchean Era (2,800 - 2,500 Ma)Paleoproterozoic Era (2,500 - 1,600 Ma)Mesoproterozoic Era (1,600 - 1,000 Ma)Neoproterozoic Era (1,000 - 542 Ma)Paleozoic Era (542 - 251 Ma)Mesozoic Era (251 - 65.5 Ma)Cenozoic Era (65.5 Ma - Now)


What does Madison mean in Japanese?

マディソン /ma di son/ would be the Japanese term for that name.


What does Maggie mean in Japanese?

マギー /ma gii/ would be the Japanese term for the name 'Maggie'.


What does MO MA mean in text?

MO, MA in text probably means "Method of Operation" or "Modus Operandi (a Latin term); it's the abbreviation for these terms.


What is the definition of the word geological?

The term geological is a scientific term used by both scientists and average people. It is used to term anything that is related or has to do with geology.


What does a geological scandal mean Google dictionary?

A "geological scandal" is not a commonly recognized term in standard geological or scientific literature. However, it could imply a situation where there is a significant controversy or ethical breach related to geological practices, research, or findings. This might involve issues such as misrepresentation of geological data, improper handling of natural resources, or environmental violations. For a precise definition, it's best to consult specific sources or context where the term is used.


What is plate in geological term?

crust?


What is a plate geological term?

crust?