Kvartiäärne

Kvartiäärne is a term used in various contexts, most notably in geology and economics. In geology, the Quaternary period is the most recent geological period, encompassing the last 2.6 million years of Earth's history. It is characterized by significant climatic fluctuations, including a series of ice ages. This period is further divided into the Pleistocene and Holocene epochs. The Quaternary is of immense importance for understanding human evolution and the development of modern landscapes. Evidence from this period includes glacial deposits, fossil remains, and changes in sea level.

In economics, particularly within the framework of the four-sector model of the economy, the quaternary sector refers to the intellectual and knowledge-based services. This sector includes activities such as research and development, information technology, consulting, and education. It is considered an extension of the tertiary sector, focusing on advanced specialized knowledge and technical skills. The growth of the quaternary sector is often seen as an indicator of a highly developed economy. Its activities are driven by innovation and the creation of new knowledge and technologies, distinguishing it from the more service-oriented tertiary sector.