One which comes to mind it the ongoing debate: if there is a direct connection between the astrological elements and Jung's four types or psychological functions and if so could a natal chart (or honorary casting) be utilised to highlight the individuals or situations dominant and inferior element correlated with the four Jungian functions.
If we cast an eye to one of Jungs books: “Psychological Types” (My current copy was published by Princeton University Press and translated by Gerhard Adler, pages 510-511, 531-532 are especially noted for this topic) we can see that Jung clearly related the four classical temperaments and astrological elements with the concept of four psychological types. However he never went into much detail, neglecting to state which element and type related to one another.
From this there has arose a fast amount of differing theories, one of my favourites actually is in which the four classical temperaments of Choleric, Melancholic, Sanguine, Phlegmatic are named the four quadrants of the astrological chart, instead of being marked with the elements.
However we can quickly find ourselves with the teachings of Aristotle: On generations and corruption, like wise with pseudo Oscellus: On the nature of the universe and Plato: Tiameus, all associating the four classical temperaments (or humours) with the four elements.
The elemental Numbers
There are several methods and techniques offered up by astrologers past and present on how to count the elements found within the chart.
Give one point for each for the elements that Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto are located in.
If we take todays major alignments:
Moon – Gemini
Mercury – Taurus
Venus – Taurus
Mars – Leo
Jupiter – Pisces
Saturn – Virgo
Uranus – Pisces
Neptune – Aquarius
Pluto – Capricorn