חוקרים מהאוניברסיטה העברית בחנו 150 מהאבנים שנמצאו. מדוע האבנים סותתו לצורה הזו? מה הייתה המטרה?

רקפת תבור | 8 בספטמבר 2023 | חדשות | 1 דק׳

מדרום לכנרת נמצאו אבנים מלפני כ-1.4 מיליון שנה שסותתו לצורה עגולה

ספרואידים (Spheroids) הן אבנים מסותתות בצורת כדור שנתגלו במספר אתרים פרה-היסטוריים ברחבי העולם. בשנות ה-60 התגלו כ-600 אבנים כדוריות כאלו גם בישראל, באתר תל עובדיה שמדרום לכנרת. עד היום חוקרים לא הצליחו להגיע להסכמה למה יועדו ספרואידים כאלו. כמה מהחוקרים מציעים שאלו רק תוצרי לוואי של ייצור כלים מתוחכמים יותר כמו גרזני יד, אחרים מציעים שהקדמונים ייצרו אותם במכוון.

תלמיד המחקר אנטואן מולר מהמעבדה לארכיאולוגיה חישובית באוניברסיטה העברית ושותפיו למחקר, בחנו כעת 150 מהכדורים שנחשפו בתל עובדיה, וניתחו באמצעות מודלים תלת ממדיים את תהליך הייצור שלהם.

קוטרן של הספרואידים כ-5 ס"מ, די קרוב לגודל כף יד. האבנים נחשפו באתר בשכבה המתוארכת לתקופה של לפני כ-1.4 מיליון שנה, כך שלמעשה הספרואידים מתל עובדיה, המשתייכים ל"תרבות האשלית" מתקופת האבן הקדומה, הם הספרואידים המוקדמים ביותר שהתגלו עד כה מחוץ לאפריקה.

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