This oldest small sanctuary, built of mudbricks below the northern temple I belongs to the Early Syrian period (about 2600 - 2100 BC).
See:
- Douglas Neal Petrovich, Tayinat's Building XVI: The Religious Dimensions and Significance of a Tripartite Temple at Neo-Assyrian Kunulua (University of Toronto: NMC Department), University of Toronto 2016 p. 267
- Alfred Werner Maurer, Tall Munbaqa / Ekalte (Mumbaqat) - http://mumbaqat.npage.de/0-tall-munbaqa-ekalte-mumbaqat.html